PGX 500 mg by Natural Factors SlimStyles

There is insufficient reliable information available about the effectiveness of algin.

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POSSIBLY EFFECTIVE

• Constipation. Glucomannan is generally effective for treatment of constipation in adults, but the efficacy in children is less clear. Details: Clinical research in adults shows that taking glucomannan 1-1.5 grams three times daily orally for 3-5 weeks, sometimes followed by 1 gram twice daily for an additional 4 weeks, can relieve constipation. As a nonabsorbable dietary fiber, glucomannan appears to have a bulk laxative effect (11294,57783,57795,57816). Taking glucomannan 1.45 grams with lactulose 4.2 grams twice daily orally for 1-3 months appears to relieve constipation during pregnancy (57818). In children with constipation, glucomannan can increase the frequency of bowel movements but does not seem to improve stool consistency. A meta-analysis of 3 clinical trials including 122 children with functional constipation shows that glucomannan leads to 1.4 more stools per week but does not improve stool consistency when compared with placebo or a maltodextrin control (97935). Two studies included in this analysis show that taking a specific glucomannan supplement (Dicoplus, Dicofarm) 100 mg/kg once or twice daily (maximum daily dose 5 grams) along with fluids for up to 12 weeks relieves constipation in children (11295,57775). However, the other clinical study included in the analysis shows that taking a different glucomannan supplement (Dicoman Junior, Vitis Pharma) 1.26 grams twice daily for 4 weeks does not improve constipation in children (92005).
• Diabetes. Limited clinical research suggests that glucomannan may improve glycemic control and lipid profiles in patients with type 2 diabetes. Details: Taking glucomannan orally seems to reduce serum cholesterol and blood glucose levels in patients with type 2 diabetes (183,11357,11359,57791,57797,57798,112702). Most clinical research shows that a glucomannan dose of 3-15 grams daily for 4-12 weeks may reduce fasting blood glucose (183,11357,57791,57797,111225). Eating cookies containing glucomannan 0.5-0.7 grams per 100 kcal for 3 weeks has also been used (11358,11359,57797). Accordingly, a meta-analysis of 5 mostly small, low-quality clinical studies in adults with type 2 diabetes, that includes several of these studies, shows that taking glucomannan 1.2-15 grams daily for 4-16 weeks modestly improves fasting blood glucose when compared with placebo or wheat bran. This analysis also shows that taking glucomannan modestly improves 2-hour post-prandial glucose, total cholesterol, and low-density lipoprotein (LDL) levels but not triglycerides (112702). In healthy people, adding a specific glucomannan supplement (PolyGlycopleX, InovoBiologic Inc.) as granules, 2.5-7.5 grams before meals, or as capsules 3-6 grams with meals, can reduce the glycemic index of starchy foods (92003,92007). Also, taking this glucomannan product reduces postprandial glucose in a dose-dependent fashion in healthy people (92002,92007). However, the interpretation of this evidence is limited by low-quality research and variations in dosages and formulations.
• Hyperlipidemia. Most clinical research shows that glucomannan can reduce cholesterol levels in healthy people and those with hyperlipidemia. Details: Although some conflicting evidence exists (57794), most research shows that taking glucomannan orally can improve lipid levels in healthy adults, children and adults with hyperlipidemia, and adults with diabetes (178,11357,11358,11359,57779,57781,57784,57791,57799,97936)(112702). Meta-analyses of clinical research show that taking glucomannan 2.5-15.1 grams daily for up to 12 weeks can reduce total cholesterol by 19 mg/dL, low-density lipoprotein (LDL) cholesterol by 13-16 mg/dL, non-high-density lipoprotein cholesterol by 12 mg/dL, and triglycerides by 11 mg/dL when compared with a control (57797,97936). Clinical research has not demonstrated a dose-response relationship, and the most common glucomannan doses are 5-10 grams daily for up to 6 weeks for adults and 2-3 grams daily in divided doses for up to 8 weeks for children (11358,11359,57797,97936).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Dumping syndrome. It is unclear if oral glucomannan is beneficial in patients with dumping syndrome. Details: Preliminary clinical research shows that taking glucomannan (Propol, Pharmacia) 2.6 or 5.2 grams as a single dose reduces the incidence of reactive hypoglycemia following an oral glucose load in adult patients with previous gastric surgery (57805). Other preliminary clinical research shows that taking glucomannan improves glucose tolerance, but not glucose absorption, in children experiencing gastric dumping syndrome after gastric surgery (57804).
• Hypertension. It is unclear if oral glucomannan is beneficial in patients with hypertension. Details: Preliminary clinical research in patients with hypertension shows that eating cookies containing 0.7 grams of glucomannan per 100 kcal, for a total dose of up to 13 grams of glucomannan daily for 3 weeks, can lower systolic blood pressure by about 7% when compared with placebo (11359).
• Hyperthyroidism. It is unclear if oral glucomannan is beneficial in patients with hyperthyroidism. Details: Preliminary clinical research in patients with hyperthyroidism shows that taking glucomannan 1.3 grams twice daily orally, plus methimazole and propranolol for 2 months, reduces serum triiodothyronine (T3) and thyroxine (T4) levels during the first few weeks of therapy, when compared with methimazole and propranolol alone. However, these effects seem to diminish after 6 weeks of therapy (57793).
• Metabolic syndrome. It is unclear if oral glucomannan is beneficial for metabolic syndrome. Details: A small crossover study in adults with metabolic syndrome, defined as impaired glucose tolerance, reduced high-density lipoprotein (HDL) cholesterol, elevated serum triglycerides, and moderate hypertension, shows that consuming biscuits containing glucomannan 0.5 grams per 100 kcal (equivalent to approximately 8-13 grams/day) daily for 3 weeks may modestly improve fasting glucose, but does not improve blood pressure or levels of triglycerides or HDL cholesterol when compared with wheat bran biscuits (11358). However, the 2-week washout period between interventions may be too short to detect differences in some outcomes.
• Obesity. Although some low-quality research shows that oral glucomannan is beneficial for achieving slight improvements in body weight, other research does not support this. Details: Meta-analyses of clinical research on the use of glucomannan for improving body weight and body composition in adults and children with overweight or obesity show mixed results, with one analysis suggesting that taking glucomannan reduces body weight by around 0.8 kg when compared with placebo (57797), and another showing no improvement in body weight (92014). Reasons for these discrepant findings are not clear, but the discrepancies may relate to differences in the study populations and dosing and duration of glucomannan treatment, as well as the low methodological quality of many studies conducted to date. Similar to the pooled analyses described above, individual clinical study results are also mixed. Several small clinical studies show that taking glucomannan can improve body weight, body mass index (BMI), fat mass, and other measures of body composition in children and adults with overweight or obesity, usually when used in combination with a calorie-restricted diet (180,181,182,183,54240,92008,92010,92011,111224,112701). However, conflicting evidence exists (179,57784,57790,57796,92009,112430). Doses that have been used with positive outcomes in adults are 3-4 grams daily, taken in divided doses, for up to 3 months (181,182,183,92008,112701). In children, doses were 2-3 grams daily for 4 months (180). Specific products evaluated include Propylene TM (Natural Alternatives International), PolyGlycopleX (InovoBiologic, Inc.) 3-5 grams 2-3 times daily for 15 weeks, and. Chrombalance 338 mg before each meal and 226 mg in the afternoon daily for 5 weeks (54240,92010,92011). More evidence is needed to rate glucomannan for these uses.

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LIKELY EFFECTIVE

• Cystic fibrosis. Long-term nebulized hypertonic sodium chloride improves lung function and reduces pulmonary exacerbations in patients with cystic fibrosis. Details: Meta-analyses of clinical research in adults with cystic fibrosis show that, when taken along with a bronchodilator and other standard therapies, nebulized hypertonic sodium chloride in concentrations of 3% to 7%, up to 10 mL twice daily for 4 weeks, increases forced expiratory volume at one second (FEV1) when compared with isotonic saline (sodium chloride 0.9%) (26230,26230). This benefit was not seen at 48 weeks. Other clinical research in adults with cystic fibrosis shows that inhaling sodium chloride 7%, 4 mL twice daily for 48 weeks, does not improve FEV1 when compared with isotonic saline. However, chronic treatment with hypertonic saline does reduce the number of pulmonary exacerbations and increase the number of patients without pulmonary exacerbations when compared with isotonic saline (29402). It is not clear if this benefit occurs in children with cystic fibrosis. The Pulmonary Clinical Practice Guidelines Committee of the Cystic Fibrosis Foundation recommends that individuals with cystic fibrosis aged 6 years or older use nebulized hypertonic saline long-term to improve lung function, reduce the number of exacerbations, and improve quality of life (29403).

POSSIBLY EFFECTIVE

• Amphotericin B nephrotoxicity. Oral sodium chloride seems to prevent nephrotoxicity associated with use of amphotericin B. Details: Clinical research shows that administering oral or intravenous sodium chloride 150 mEq daily during treatment with amphotericin B can attenuate the rise in serum creatinine levels and preserve renal function when compared to treatment with amphotericin B alone (26226).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Bipolar disorder. It is unclear if oral sodium is beneficial in preventing lithium level fluctuations in patients with bipolar disorder. Details: A moderate-sized open-label clinical study in adults with type I bipolar disorder receiving lithium carbonate shows that taking sodium chloride 1 gram daily for 12 weeks along with dietary salt restriction of 1 gram daily reduces the percentage of patients with lithium level fluctuations above 0.8 mEq/L, but does not significantly affect serum sodium, potassium, aldosterone, or creatinine levels when compared with controls who were not salt restricted, but were advised not to consume additional salt at the table (112909). However, the interpretation of these findings is limited by missing data in both groups.
• Canker sores. Although there is interest in using topical sodium chloride for canker sores, there is insufficient reliable information about the clinical effects of sodium chloride for this condition.
• Congestive heart failure. It is unclear if oral sodium is beneficial in patients with acute decompensated heart failure requiring decongestive therapy with diuretics. Details: A moderate-sized clinical study in adults hospitalized with acute decompensated heart failure requiring high-dose intravenous furosemide shows that taking sodium chloride 2 grams three times daily for up to 96 hours does not affect patient weight or serum creatinine levels when compared with placebo (112911). However, the clinical relevance of this study is unclear and it may have been inadequately powered to detect a difference between groups.
• Conjunctivitis. Although there is interest in using ophthalmic sodium chloride for conjunctivitis, there is insufficient reliable information about the clinical effects of sodium chloride for this condition.
• Hyponatremia. Although there is interest in using oral sodium chloride for hyponatremia, there is insufficient reliable information about the clinical effects of oral sodium chloride for this condition.
• Pharyngitis. Although there is interest in using topical sodium chloride for pharyngitis, there is insufficient reliable information about the clinical effects of sodium chloride for this condition.
• Prematurity. It is unclear if oral sodium is beneficial for premature infants. Details: Preliminary clinical research in infants born at less than 32 weeks' gestation shows that adding sodium 4 mEq/kg daily to enteral feedings, starting from the 7th day after birth and continuing through the 35th day, reduces the risk of developing hyponatremia and improves weight gain when compared with adding water (98180). A small, open-label clinical study in newborns less than 35 weeks gestation shows that high sodium intake, defined as an average of 0.25% sodium in maintenance fluids, for 48 hours on day 2 and 3 after birth results in less weight loss within the first 72 hours of life when compared with control, but does not improve mortality, length of hospital stay, or complications from prematurity (112908). However, interpretation of these findings is limited by varied concentrations of sodium as an intervention. More evidence is needed to rate sodium for these uses.

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POSSIBLY EFFECTIVE

• Constipation. Taking xanthan gum orally as a bulk-forming laxative seems to decrease constipation (4917,4918).
• Swallowing dysfunction. Using a specific xanthan gum product (Resource ThickenUp Clear, Nestle Health Science) as a thickener in liquid feeds improves swallowing and reduces the risk of aspiration in people with swallowing dysfunction similarly to a modified starch thickener (Resource ThickenUp, Nestle Health Science). Xanthan gum also does not appear to leave the pharyngeal residues seen with the modified starch product (100912,100913).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Diabetes. Taking xanthan gum 12 grams orally daily in muffins seems to lower blood glucose in people with diabetes (4916).
• Dry eye. Using eye drops containing xanthan gum and chondroitin sulfate (PRO-148 or Xiel ofteno, Sophia Laboratories) four times daily for 60 days improves tear film break-up times, ocular surface disease index, and symptoms of dry eye similarly to polyethylene glycol/propylene glycol eye drops (Systane, Alcon Laboratories Inc.) (89591,95794). It is not clear if this effect is due to xanthan gum, chondroitin sulfate, or the combination.
• Sjogren syndrome. Applying xanthan gum topically in the mouth seems to help as a saliva substitute in people with Sjogren syndrome (4915).

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LIKELY SAFE ...when used orally in amounts typically found in foods (11). There is insufficient reliable information available about the safety of algin when used orally in medicinal amounts.

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

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LIKELY SAFE ...when used orally as food (11358,11359). Glucomannan powder or flour is often used to enrich noodles in traditional Japanese foods.

POSSIBLY SAFE ...when used orally with at least 250 mL (8 ounces) of water or other fluid. Glucomannan has been safely used in studies lasting up to 4 months (178,179,181,182,11046,11294,11357,11294,54240,57775)(57781,57783,57784,92004,92008,92009,92010,92011,106410). In the European Union, the maximum permitted level in foods is 10 grams/kg (106411).

POSSIBLY UNSAFE ...when used orally without any liquid, especially when in tablet form. There have been reports of choking and esophageal or gastrointestinal obstruction when glucomannan products are taken dry. A safety alert for this has been issued by Health Canada (11293,57785,106410).

CHILDREN: POSSIBLY SAFE
when used orally and appropriately with at least 250 mL (8 ounces) of water or other fluid. Glucomannan has been safely used in children for up to 4 months (179,180,11295,57775,57779,92005,92006,97935).

CHILDREN: LIKELY UNSAFE
when used orally without any liquid, especially when in tablet form. There have been reports of esophageal and gastrointestinal obstruction when glucomannan products are taken dry (11293,57785,106410).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

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LIKELY SAFE ...when used orally and appropriately. Sodium is safe in amounts that do not exceed the Chronic Disease Risk Reduction (CDRR) intake level of 2.3 grams daily (100310). Higher doses can be safely used therapeutically with appropriate medical monitoring (26226,26227).

POSSIBLY UNSAFE ...when used orally in high doses. Tell patients to avoid exceeding the CDRR intake level of 2.3 grams daily (100310). Higher intake can cause hypertension and increase the risk of cardiovascular disease (26229,98176,98177,98178,98181,98183,98184,100310,109395,109396,109398,109399). There is insufficient reliable information available about the safety of sodium when used topically.

CHILDREN: LIKELY SAFE
when used orally and appropriately (26229,100310). Sodium is safe in amounts that do not exceed the CDRR intake level of 1.2 grams daily for children 1 to 3 years, 1.5 grams daily for children 4 to 8 years, 1.8 grams daily for children 9 to 13 years, and 2.3 grams daily for adolescents (100310).

CHILDREN: POSSIBLY UNSAFE
when used orally in high doses. Tell patients to avoid prolonged use of doses exceeding the CDRR intake level of 1.2 grams daily for children 1 to 3 years, 1.5 grams daily for children 4 to 8 years, 1.8 grams daily for children 9 to 13 years, and 2.3 grams daily for adolescents (100310). Higher intake can cause hypertension (26229).

PREGNANCY AND LACTATION: LIKELY SAFE
when used orally and appropriately. Sodium is safe in amounts that do not exceed the CDRR intake level of 2.3 grams daily (100310).

PREGNANCY AND LACTATION: POSSIBLY UNSAFE
when used orally in higher doses. Higher intake can cause hypertension (100310). Also, both the highest and the lowest pre-pregnancy sodium quintile intakes are associated with an increased risk of hypertensive disorders of pregnancy, including gestational hypertension and pre-eclampsia, and the delivery of small for gestational age (SGA) infants when compared to the middle intake quintile (106264).

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LIKELY SAFE ...when consumed in amounts found in foods, up to 10 mg/kg per day (4914). It has Generally Recognized as Safe (GRAS) status in the US (4912). ...when used orally for medicinal use in amounts up to 15 grams per day (4914,4916,4917,4918). ...when used topically and appropriately (4914,89591,95794).

PREGNANCY AND LACTATION:
Insufficient reliable information is available; avoid using in amounts greater than those found in foods.

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ORAL DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = B Theoretically, glucomannan may decrease absorption of drugs taken orally.  Details Due to its viscosity and bulking effects, there is concern that glucomannan can decrease the absorption of oral drugs. A small clinical study in healthy volunteers shows that taking glyburide 2.5 mg plus glucomannan 3.9 grams with breakfast reduces plasma levels of glyburide when compared with breakfast and glyburide alone (11360). In addition, animal research demonstrates this effect on amoxicillin, but shows increased absorption of metronidazole. This mouse model also demonstrates that metronidazole elimination is prolonged, but amoxicillin elimination is enhanced by 38%; glucomannan may also affect the distribution of some drugs (112703). To avoid changes in absorption, take glucomannan 30-60 minutes after taking oral drugs.

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ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = A Theoretically, a high intake of dietary sodium might reduce the effectiveness of antihypertensive drugs.  Details High intake of dietary sodium can increase systolic and diastolic blood pressure (26222). Also, high intake of sodium may necessitate increased use of antihypertensive medications to achieve blood pressure control in some patients, such as those with chronic kidney disease (26223).

CORTICOSTEROIDS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Concomitant use of mineralocorticoids and some glucocorticoids with sodium supplements might increase the risk of hypernatremia.  Details Mineralocorticoids and some glucocorticoids (corticosteroids) cause sodium retention. This effect is dose-related and depends on mineralocorticoid potency. It is most common with hydrocortisone, cortisone, and fludrocortisone, followed by prednisone and prednisolone (4425).

LITHIUM Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = B Altering dietary intake of sodium might alter the levels and clinical effects of lithium.  Details High sodium intake can reduce plasma concentrations of lithium by increasing lithium excretion (26225). Reducing sodium intake can significantly increase plasma concentrations of lithium and cause lithium toxicity in patients being treated with lithium carbonate (26224,26225). Stabilizing sodium intake is shown to reduce the percentage of patients with lithium level fluctuations above 0.8 mEq/L (112909). Patients taking lithium should avoid significant alterations in their dietary intake of sodium.

SODIUM-CONTAINING DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Concomitant use of sodium-containing drugs with additional sodium from dietary or supplemental sources may increase the risk of hypernatremia and long-term sodium-related complications.  Details The Chronic Disease Risk Reduction (CDRR) intake level of 2.3 grams of sodium daily indicates the intake at which it is believed that chronic disease risk increases for the apparently healthy population (100310). Some medications contain high quantities of sodium. When used in conjunction with sodium supplements or high-sodium diets, the CDRR may be exceeded. Additionally, concomitant use may increase the risk for hypernatremia; this risk is highest in the elderly and people with other risk factors for electrolyte disturbances.

TOLVAPTAN (Samsca) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = C Theoretically, concomitant use of tolvaptan with sodium might increase the risk of hypernatremia.  Details Tolvaptan is a vasopressin receptor 2 antagonist that is used to increase sodium levels in patients with hyponatremia (29406). Patients taking tolvaptan should use caution with the use of sodium salts such as sodium chloride.

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General ...Orally, algin is well tolerated in amounts typically found in foods (11). No adverse effects related to medicinal amounts of algin have been reported. However, a thorough evaluation of safety outcomes has not been conducted.

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General ...Orally, glucomannan is generally well tolerated when taken with plenty of water or other liquid.
Most Common Adverse Effects:
Orally: Abdominal pain, bloating, constipation, diarrhea, flatulence, nausea, and vomiting.
Serious Adverse Effects (Rare):
Orally: Choking and esophageal or gastrointestinal obstruction, especially when taken as a dry powder or in tablet form.

Gastrointestinal ...Orally, glucomannan can cause gastrointestinal disturbances, including abdominal pain, bloating, constipation, diarrhea, flatulence, nausea, and vomiting, especially when taken in doses of more than 3 grams daily (57781,57784,92004,92010,92011,97935,106411). Esophageal and gastrointestinal obstructions have been reported when dry glucomannan-containing products are taken with insufficient fluid (11293,57785,106410).

Hepatic ...Acute cholestatic hepatitis occurred in a 31-year-old male after taking glucomannan orally for 45 days (57777). He was also taking other supplements, including garlic and chitosan, so it is unclear whether the hepatitis was due to glucomannan, other supplements, or the combination.

Pulmonary/Respiratory ...Cases of occupational respiratory disorders, including respiratory sensitization and bronchial asthma, have been reported in workers exposed to glucomannan (57789,57810).

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General ...Orally, sodium is well tolerated when used in moderation at intakes up to the Chronic Disease Risk Reduction (CDRR) intake level. Topically, a thorough evaluation of safety outcomes has not been conducted.
Serious Adverse Effects (Rare):
Orally: Worsened cardiovascular disease, hypertension, kidney disease.

Cardiovascular ...Orally, intake of sodium above the CDRR intake level can exacerbate hypertension and hypertension-related cardiovascular disease (CVD) (26229,98176,100310,106263). A meta-analysis of observational research has found a linear association between increased sodium intake and increased hypertension risk (109398). Observational research has also found an association between increased sodium salt intake and increased risk of CVD, mortality, and cardiovascular mortality (98177,98178,98181,98183,98184,109395,109396,109399). However, the existing research is unable to confirm a causal relationship between sodium intake and increased cardiovascular morbidity and mortality; high-quality, prospective research is needed to clarify this relationship (100312). As there is no known benefit with increased salt intake that would outweigh the potential increased risk of CVD, advise patients to limit salt intake to no more than the CDRR intake level (100310).
A reduction in sodium intake can lower systolic blood pressure by a small amount in most individuals, and diastolic blood pressure in patients with hypertension (100310,100311,106261). However, post hoc analysis of a small crossover clinical study in White patients suggests that 24-hour blood pressure variability is not affected by high-salt intake compared with low-salt intake (112910). Additionally, the available research is insufficient to confirm that a further reduction in sodium intake below the CDRR intake level will lower the risk for chronic disease (100310,100311). A meta-analysis of clinical research shows that reducing sodium intake increases levels of total cholesterol and triglycerides, but not low-density lipoprotein (LDL) cholesterol, by a small amount (106261).
It is unclear whether there are safety concerns when sodium is consumed in amounts lower than the adequate intake (AI) levels. Some observational research has found that the lowest levels of sodium intake might be associated with increased risk of death and cardiovascular events (98181,98183). However, this finding has been criticized because some of the studies used inaccurate measures of sodium intake, such as the Kawasaki formula (98177,98178,101259). Some observational research has found that sodium intake based on a single 24-hour urinary measurement is inversely correlated with all-cause mortality (106260). The National Academies Consensus Study Report states that there is insufficient evidence from observational studies to conclude that there are harmful effects from low sodium intake (100310).

Endocrine ...Orally, a meta-analysis of observational research has found that higher sodium intake is associated with an average increase in body mass index (BMI) of 1. 24 kg/m2 and an approximate 5 cm increase in waist circumference (98182). It has been hypothesized that the increase in BMI is related to an increased thirst, resulting in an increased intake of sugary beverages and/or consumption of foods that are high in salt and also high in fat and energy (98182). One large observational study has found that the highest sodium intake is not associated with overweight or obesity when compared to the lowest intake in adolescents aged 12-19 years when intake of energy and sugar-sweetened beverages are considered (106265). However, in children aged 6-11 years, usual sodium intake is positively associated with increased weight and central obesity independently of the intake of energy and/or sugar-sweetened beverages (106265).

Gastrointestinal ...In one case report, severe gastritis and a deep antral ulcer occurred in a patient who consumed 16 grams of sodium chloride in one sitting (25759). Chronic use of high to moderately high amounts of sodium chloride has been associated with an increased risk of gastric cancer (29405).

Musculoskeletal ...Observational research has found that low sodium levels can increase the risk for osteoporosis. One study has found that low plasma sodium levels are associated with an increased risk for osteoporosis. Low levels, which are typically caused by certain disease states or chronic medications, are associated with a more than 2-fold increased odds for osteoporosis and bone fractures (101260).
Conversely, in healthy males on forced bed rest, a high intake of sodium chloride (7.7 mEq/kg daily) seems to exacerbate disuse-induced bone and muscle loss (25760,25761).

Oncologic ...Population research has found that high or moderately high intake of sodium chloride is associated with an increased risk of gastric cancer when compared with low sodium chloride intake (29405). Other population research in patients with gastric cancer has found that a high intake of sodium is associated with an approximate 65% increased risk of gastric cancer mortality when compared with a low intake. When zinc intake is taken into consideration, the increased risk of mortality only occurred in those with low zinc intake, but the risk was increased to approximately 2-fold in this sub-population (109400).

Pulmonary/Respiratory ...In patients with hypertension, population research has found that sodium excretion is modestly and positively associated with having moderate or severe obstructive sleep apnea. This association was not found in normotensive patients (106262).

Renal ...Increased sodium intake has been associated with impaired kidney function in healthy adults. This effect seems to be independent of blood pressure. Observational research has found that a high salt intake over approximately 5 years is associated with a 29% increased risk of developing impaired kidney function when compared with a lower salt intake. In this study, high salt intake was about 2-fold higher than low salt intake (101261).

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General ...Orally, xanthan gum can cause flatulence and abdominal distention (4916,4918). Topically, it has been reported to cause allergic reactions (100914).

Immunologic ...An itchy, burning dermatitis was reported in a 9-year old girl after application of a sunscreen product containing xanthan gum. Patch testing with the separate ingredients of the sunscreen identified xanthan gum as the reacting agent, and demonstrated a dose-dependent effect with 1% and 10% solutions (100914).

Pulmonary/Respiratory ...Occupational exposure in workers handling xanthan gum powder can cause flu-like symptoms and nose and throat irritation without acute or chronic loss of pulmonary function (4913).

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