Two capsules contain: Red Yeast Rice extract 1200 mg • SoyLife brand Soy Germ concentrate (standardized for 2.5-3.0% isoflavones) 314 mg. Other Ingredients: Gelatin, Vegetable Magnesium Stearate, Silica.
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Below is general information about the effectiveness of the known ingredients contained in the product Cholesterol Health. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
Below is general information about the safety of the known ingredients contained in the product Cholesterol Health. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
POSSIBLY SAFE ...when used orally and appropriately. Red yeast rice 1.2 grams daily has been used with apparent safety in clinical studies for up to 4.5 years (512,2624,6988,6995,6996,17089,18110,70508,70513) (70520,70525,70530,95664,95666). However, red yeast rice products can contain an HMG-CoA reductase inhibitor identical to lovastatin, and can cause the same side effects as this drug. It is recommended that people taking red yeast rice products be monitored for the same hepatic and muscle-related adverse effects that are seen with lovastatin (98822).
PREGNANCY: LIKELY UNSAFE
when used orally.
The red yeast rice constituent, lovastatin, has induced fetal skeletal malformations in animals (2619). The US Food and Drug Administration (FDA) recommends that most patients discontinue statin therapy during pregnancy due to the risks to the fetus; however, in certain high-risk patients, a prescription statin may be continued during pregnancy (107954).
LACTATION:
Insufficient reliable information available; avoid using.
The US FDA recommends against breastfeeding while taking statins (107954).
LIKELY SAFE ...when soy protein is used orally and appropriately. Soy protein products in doses up to 60 grams, providing up to 185 mg isoflavones, daily have been safely used in studies lasting up to 16 weeks (842,2293,2294,2296,3025,3402,3977,4755,6412,8530)(10372,11805).
POSSIBLY SAFE ...when soy extracts are used orally and appropriately, short-term. Soy extracts containing concentrated isoflavones in doses of 35-120 mg daily have been used with apparent safety for up to 6 months (4751,6455,7802,12040,12048,13209,95994,95999).
CHILDREN: LIKELY SAFE
when consumed in amounts commonly found in foods or as a component of infant formula (3400,4912,7331).
Soy milk that's not designed for infants should not be used as a substitute for infant formula. Regular soy milk can lead to nutrient deficiencies (12045). Most evidence shows that exposure to soy formula or other soy products in infancy does not cause early onset of puberty or health or reproductive problems later in life (7331,11080,108245). However, some small cohort studies have suggested that higher soy intake during childhood may be associated with an increased risk of precocious puberty (108240) and may be weakly correlated with the development of breasts in children less than 2 years of age (75520). This is in contrast to an observational study in Chinese children ages 7-9 years which suggests that higher soy intake is associated with delayed puberty (108252). One small cohort study has also found that use of soy infant formula may be associated with an increased risk of endometriosis in adulthood, although endometriosis was also correlated with prematurity, which may have confounded the findings (101803).
CHILDREN: POSSIBLY UNSAFE
when used orally as an alternative to cow's milk in children with severe milk allergy (75359).
Although soy protein-based infant formulas are often promoted for children with milk allergy, children with a severe allergy to cow's milk are also frequently sensitive to soy protein (9883). There is insufficient reliable information available about the safety of soy products when used in amounts higher than typical food quantities for children.
PREGNANCY: LIKELY SAFE
when used orally in amounts commonly found in foods (4912).
PREGNANCY: POSSIBLY UNSAFE
when used orally in medicinal amounts.
Soy contains mildly estrogenic constituents (3373,3988,3989,3990,3994,6029,75303). Theoretically, therapeutic use of soy might adversely affect fetal development; avoid using.
LACTATION: LIKELY SAFE
when used orally in amounts commonly found in foods (4912).
A single 20-gram dose of roasted soybeans, containing 37 mg isoflavones, produces four to six times less isoflavones in breast milk than provided in a soy-based infant formula (2290). There is insufficient reliable information available about the safety of long-term use of therapeutic amounts of soy during lactation.
Below is general information about the interactions of the known ingredients contained in the product Cholesterol Health. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Theoretically, taking red yeast rice in combination with cyclosporine might increase the risk of myopathy.
 Details
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Theoretically, drugs that inhibit the CYP3A4 enzymes might increase levels of lovastatin from red yeast rice.
Details
Red yeast rice contains varying levels of the statin drug lovastatin, which is metabolized by CYP3A4 (104951). Combining red yeast rice with CYP3A4 inhibitors might increase serum levels of lovastatin from red yeast rice.
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Theoretically, taking red yeast rice in combination with gemfibrozil might increase the risk of rhabdomyolysis.
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Theoretically, concomitant use might increase the risk of liver damage.
Details
Red yeast rice contains varying levels of the drug lovastatin. Lovastatin can cause liver damage in some people (104951). Some clinical research suggests that supplements containing red yeast rice might increase liver enzyme levels in some, but not all, participants (42692,70491). Cases of acute hepatitis have been associated with red yeast rice (16654,54477). Combining it with hepatotoxic drugs might further increase this risk.
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Theoretically, taking red yeast rice with other statins might increase the risk of potential adverse effects.
Details
Red yeast rice contains varying levels of the statin drug lovastatin and might result in supratherapeutic levels when used with other statins. Based on evaluation of data from the US Food and Drug Administration's adverse event reporting system (FAERS), it is recommended that red yeast rice products be avoided in people taking prescription statins (98822).
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Theoretically, taking red yeast rice in combination with high-dose niacin might increase the risk of rhabdomyolysis.
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Theoretically, antibiotics may decrease the activity of soy isoflavones.
Details
Intestinal bacteria are responsible in part for converting soy isoflavones into their active forms. Antibiotics may decrease the amount of intestinal bacteria and decrease its ability to convert isoflavones (7657).
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Soy can lower blood glucose and have additive effects with antidiabetes drugs.
Details
Clinical research shows that whole soy diets and soy-based meals reduce fasting glucose levels in diabetic and non-diabetic individuals (75268,75296,75378,75493,96001). Also, individuals following a soy-based meal replacement plan seem to require lower doses of sulfonylureas and metformin to manage blood glucose levels when compared with individuals following a diet plan recommended by the American Diabetes Association (75268).
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Theoretically soy protein may have additive effects with antihypertensive drugs and increase the risk of hypotension.
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Theoretically, soy might reduce the clearance of caffeine.
Details
Soy contains genistein. Taking genistein 1 gram daily for 14 days seems to inhibit caffeine clearance and metabolism in healthy females (23582). This effect has been attributed to inhibition of the cytochrome P450 1A2 (CYP1A2) enzyme, which is involved in caffeine metabolism. It is unclear if this effect occurs with the lower amounts of genistein found in soy.
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Soy might modestly induce CYP2C9 enzymes. However, this effect does not seem to be clinically significant.
Details
In vitro research suggests that an unhydrolyzed soy extract might induce CYP2C9. However, the significance of this interaction is likely minimal. In healthy females taking a specific extract of soy (Genistein Soy Complex, Source Naturals), blood levels of losartan, a CYP2C9 substrate, were not significantly affected (16825).
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Theoretically, soy might have additive effects when used with diuretic drugs.
Details
Animal research suggests that genistein, a soy isoflavone, increases diuresis within 6 hours of subcutaneous administration in rats. The effects seem to be similar to those of furosemide (75604). This effect has not been reported in humans.
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Theoretically, soy might competitively inhibit the effects of estrogen replacement therapy.
Details
Soy contains phytoestrogens and has been shown to have estrogenic activity in some patients (3860). Although this has not been demonstrated in humans, theoretically, concomitant use of soy with estrogen replacement therapy might reduce the effects of the estrogen replacement therapy.
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Soy products might reduce the absorption of levothyroxine in some patients.
Details
Preliminary clinical research and a case report suggest that soy-based formulas inhibit the absorption of levothyroxine in infants with congenital hypothyroidism (20636,20637,75548,90959). A levothyroxine dosage increase may be needed for infants with congenital hypothyroidism while using soy-based formulas, and the dose may need to be reduced when soy-based formulas are no longer administered. However, in postmenopausal adults, clinical research shows that taking a single dose of soy extract containing isoflavones 60 mg along with levothyroxine does not affect the oral bioavailability of levothyroxine (95996).
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Taking soy products containing high amounts of tyramine along with MAOIs can increase the risk of hypertensive crisis.
Details
Fermented soy products such as tofu and soy sauce contain tyramine, a naturally occurring chemical that affects blood pressure regulation. The metabolism of tyramine is decreased by MAOIs. Consuming more than 6 mg of tyramine while taking an MAOI can increase the risk of hypertensive crisis (15649). The amount of tyramine in fermented soy products is usually less than 0.6 mg per serving; however, there can be significant variation depending on the specific product used, storage conditions, and length of storage. Storing one brand of tofu for a week can increase tyramine content from 0.23 mg to 4.8 mg per serving (15649,15701,15702). Advise patients taking MAOIs to avoid fermented soy products that contain high amounts of tyramine.
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Theoretically, combining soy isoflavones with transdermal progesterone may worsen bone density.
Details
Clinical research suggests that significant bone loss may occur in females with osteoporosis who receive a combination of transdermal progesterone with soy milk containing isoflavones when compared with placebo, soy milk alone, or progesterone alone (69859).
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Theoretically, estrogenic soy isoflavones might alter the effects of tamoxifen.
Details
Laboratory research suggests that genistein and daidzen, isoflavones from soy, can antagonize the antitumor effects of tamoxifen under some circumstances (7072,14362,8966); however, soy isoflavones might have different effects when used at different doses. A relatively low in vitro concentration of soy isoflavones such as 1 microM/L seems to interfere with tamoxifen, whereas high in vitro concentrations such as those >10 microM/L might actually enhance tamoxifen effects. People on a high-soy diet have soy isoflavones levels ranging from 0.1-6 microM/L. Until more is known, advise patients taking tamoxifen to avoid therapeutic use of soy products.
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Theoretically, soy might interfere with the effects of warfarin.
Details
Soy milk has been reported to decrease the international normalized ratio (INR) in a patient taking warfarin. The mechanism of this interaction is not known (9672). However, animal and in vitro research suggests that soy may also inhibit platelet aggregation (3992). Dosing adjustments for warfarin may be necessary.
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Below is general information about the adverse effects of the known ingredients contained in the product Cholesterol Health. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
General
...Orally, red yeast rice seems to be well tolerated.
Most Common Adverse Effects:
Orally: Abdominal discomfort, diarrhea, dizziness, flatulence, headache, heartburn, myopathy, and nausea.
Serious Adverse Effects (Rare):
Orally: There have been reports of hepatotoxicity and rhabdomyolysis, likely related to the lovastatin content of red yeast rice. Contaminated red yeast rice might cause renal toxicity.
Cardiovascular ...Orally, red yeast rice used in combination with other natural ingredients, such as green tea extract and policosanol, has been associated with a case of chest pain and a case of tachycardia requiring hospitalization, in post marketing surveillance (94001).
Dermatologic ...Orally, red yeast rice has been rarely associated with mild cases of pruritus and rash in clinical trials and post marketing surveillance (70531,94001,95664). Two cases of alopecia were reported in patients taking red yeast rice in clinical research (17089).
Gastrointestinal ...Orally, red yeast rice has been associated with mild adverse effects including abdominal discomfort, bloating, heartburn, flatulence, diarrhea or loose stools, nausea, vomiting, abdominal distention or pain, and reduced appetite, in clinical trials and post marketing surveillance (2624,6988,16836,70556,94001,95664). Taking red yeast rice with food may reduce the risk of heartburn, gas, and abdominal discomfort.
Genitourinary
...Orally, red yeast rice has been associated with rare reports of erectile dysfunction (70520).
In one case report, a 39-year-old male developed erectile dysfunction after taking red yeast rice for one week. The dysfunction resolved after discontinuation of red yeast rice (98822).
A case of cystitis has been reported in a patient taking a specific combination product (Limicol, Laboratoire Lescuyer) containing red yeast rice extract, sugar cane extract, dry artichoke leaf extract, dry garlic extract, pine bark extract, vitamin E, riboflavin, and inositol hexanicotinate (89451). However, it is unclear if this event was associated with red yeast rice or other ingredients in the supplement.
Hepatic ...Orally, red yeast rice preparations have been linked to case reports of hepatotoxicity, including increased liver enzymes and acute hepatitis (16654,54477,94001,95664,98822,112644). Since red yeast rice often contains significant concentrations of the statin-like monacolin constituents, including lovastatin, it has the potential to cause similar side effects, including elevated liver enzymes. Clinical trials have shown that red yeast rice intake is associated with mild increases in levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT), which suggests possible liver damage (42692,70491,70513,70531,70547,107952). A case report describes a 62-year-old female who developed mixed hepatocellular and cholestatic hepatitis while taking red yeast rice. Signs and symptoms included fever, dark colored urine, weight loss, hyperbilirubinemia, and elevated ALT levels, all of which resolved after stopping red yeast rice (112089). A small study in various patient populations shows that taking a specific combination product (Armolipid Plus, Rottapharm S.p.A.) containing red yeast rice, berberine, policosanol, and other ingredients modestly increases levels of ALT, but not AST (107953). Clinical reviews of red yeast rice products show the risk of liver injury is comparable to the placebo or active control group, including pravastatin or lovastatin, when taken for up to 24 weeks (95664,95666).
Immunologic
...In one case report, a 58-year-old male presented with complaints of chronic dysphagia from eosinophilic esophagitis 12 months after starting an oral red yeast rice supplement (Artechol) containing monacolin K.
Eosinophilic esophagitis resolved after cessation of red yeast rice (104465).
Inhalation of red yeast rice powder has resulted in one case of anaphylaxis (6997).
Musculoskeletal ...Orally, red yeast rice preparations have been linked to cases of myalgia, muscle spasm, rhabdomyolysis, and myopathy (9587,15017,16654,16834,16836,17089,70475,94001,95664,98822)(103311,112644,112645). Also, elevated creatine kinase levels up to 10 times normal, suggesting muscle injury and inflammation, have been reported in clinical and post-marketing research reports (6988,9587,15017,42692,70530,70567,94001,95664). The risk of muscle injury with red yeast rice seems to be similar to that with statins. In a small 3-month clinical trial in patients with previous statin intolerance, the rate of therapy discontinuation due to myalgia was similar between patients taking a specific red yeast rice product (Red Yeast Rice, Sylvan Bioproducts) 2400 mg twice daily (containing a daily dose of about 10 mg lovastatin) and patients taking pravastatin 20 mg twice daily (17089). However, in one case report, a 53-year-old patient experienced myalgia after 4 months of taking a red yeast rice product containing 4-8 mg lovastatin. Another case report describes a 50-year-old female who developed generalized myalgias and rhabdomyolysis, with elevated creatine phosphokinase, lactate dehydrogenase, and myoglobin levels, while taking red yeast rice (112306). The risk of myopathy seems to depend on the specific red yeast rice formulation and dose used (95903).
Neurologic/CNS ...Orally, red yeast rice has been associated with dizziness, headache, fatigue, and tingling in the extremities (6988,16836,17089,18110,94001). A case of peripheral neuropathy occurred in a 60-year-old male with a gastrointestinal tumor who was taking imatinib 400 mg daily along with red yeast rice for 3 years (89453). Three months after cessation of red yeast rice, symptoms resolved.
Ocular/Otic ...Orally, red yeast rice in combination with policosanol has been associated with one post-marketing report of hazy vision (94001).
Renal ...Orally, red yeast rice contaminated with citrinin may cause renal toxicity. Analyses of red yeast rice products have found that about one-third to two-thirds of these products contain citrinin (9588,17501,95666). Citrinin is a nephrotoxin that results from incorrect rice fermentation processes (9588,17501,70543). In vitro and in animal research, citrinin has been reported to cause kidney damage (70482,70542,70540).
Other ...Orally, red yeast rice has been associated with rare cases of edema (70508,70520,70525).
General
...Orally, soy is well tolerated.
Most Common Adverse Effects:
Orally: Bloating, constipation, diarrhea, and nausea.
All ROAs: Allergic reactions.
Endocrine
...In the 1950s and 1960s, cases of altered thyroid function, particularly goiter, were reported in children taking soy formula.
However, adding iodine to soy formula or replacing soy flour in formula with soy protein isolate has nearly eliminated the risk of altered thyroid function in most infants (75353,75651).
In adults, there is some evidence that soy intake can alter thyroid function. Results from one clinical trial suggests that consuming soybeans 30 grams daily for as little as one month can increase thyroid-stimulating hormone (TSH) and decrease thyroxine, causing diffuse goiters, constipation, fatigue, and lethargy in some Japanese men. Recovery was achieved by discontinuing soybean intake (75206,75353). There is also some evidence that soy inhibits thyroid hormone synthesis resulting in increased secretion of TSH in some postmenopausal patients (7806). However, this seems to only occur in people with iodine deficiency (6466,75311). In postmenopausal patients with normal levels of iodine, taking a soy extract for 6 months does not seem to significantly affect thyroid hormone levels (13010).
Evidence from a single case-control study suggests that consumption of soy-based formulas may be associated with an observed three-fold increase in the risk of breast development in Puerto Rican children less than 2 years-old (75520). The correlation has been attributed to the estrogenic activity of soy. However, other risk factors, including a maternal history of ovarian cysts and consumption of meat products were also associated with the increased risk of breast development prior to 2 years of age. Also, the investigators noted that in over half of the cases, the child had not been exposed to soy or any of the other risk factors. Therefore, factors other than soy consumption may be more strongly associated with the increased risk of breast development prior to 2 years of age.
Gastrointestinal ...Gastrointestinal upset, such as constipation, diarrhea, bloating, and nausea are the most common side effects of soy (2297,11033,11082,15851,75491,95999). Reports of "bad taste" and taste intolerance have also been documented in clinical research (15851,39007,75491). Firmer stools, diarrhea, colitis, and intestinal mucosal damage has been reported in infants fed soy protein formula (75161,75448,75516,75525).
Genitourinary
...Orally, soy might increase discomfort during menstrual periods.
Evidence from a small, retrospective cohort study has found that consuming soy formula as an infant may slightly increase the duration and discomfort of menstrual periods later in life. However, the investigators noted that these differences may not be clinically significant (7331).
Orally, frequent soy consumption might be a risk factor for uterine leiomyoma, an estrogen-dependent benign tumor located on the uterus. Observational research found that consumption of soy milk or soybean at least four times weekly is associated with a 7-fold increased odds of uterine leiomyoma (98869).
There is some concern that use of soy-based formulas in infants might result in long-term health complications. However, results from a retrospective cohort study has found that intake of soy-based formula as an infant does not affect height, weight, body mass index, pubertal maturation, menstrual history, or pregnancy history, nor does it increase the risk of reproductive organ disorders, hormonal disorders, libido dysfunction, or birth defects in the offspring of adults who received soy formula as infants (7331,11080). Additionally, research in adults shows that urinary phytoestrogens are not associated with endometriosis risk (101804). However, some population research has found that regular exposure to soy-based formulas during infancy is associated with an increased risk for endometriosis (101803).
Immunologic
...Orally, soy can cause allergic reactions such as skin rash and itching in some people (6412).
In an 11-year-old female, allergy to soy protein resulting in a delayed itching papular rash was thought to be responsible for the reaction to injected benzathine benzylpenicillin containing possible soy protein-contaminated soy lecithin (96422).
Topically, soy-based ingredients were responsible for the development of hand atopic dermatitis in a young female using cosmetic lotions in the workplace. Percutaneous sensitization resulted in the development of anaphylaxis to oral soy (96000).
Neurologic/CNS ...Orally, one clinical study showed that insomnia was more common in postmenopausal adults taking soy isoflavone supplements when compared with those receiving placebo (9917). Some research suggests that dietary consumption of tofu during midlife might decrease cognitive function in later years. Evidence from one retrospective cohort study suggests that males who consume at least two servings of tofu weekly during midlife have increased risk of cognitive impairment in late life (19% vs. 4%) compared to those who consume tofu less frequently. Although the effect of tofu was considered to be marginal compared to other factors such as age, education, or history of stroke, results from the study suggest that the effect of significant midlife consumption of tofu is comparable to the effect of an age difference of 4 years or an education difference of 3 years. However, numerous other factors, such as lifestyle and health, could be involved (6415,6416). Therefore, these findings are too preliminary to be used as a basis for clinical recommendations.
Oncologic
...There is controversy about the role of soy in breast cancer.
Population studies suggest that soy is protective against breast cancer. Asian females who eat a traditional diet high in soy seem to have a lower risk of developing breast cancer (4590,5939,9674). Early exploratory studies have suggested that soy stimulates proliferation of normal human breast tissue (3980,3981). However, taking a soy tablet containing 50 mg soy isoflavones daily for 12 months does not alter mammographic or breast MRI tissue density in adults at high risk of breast cancer, with non-endocrine treated breast cancer, or previously treated for breast cancer and without evidence of recurrence (95999).
There is some concern that soy supplements, but not soy foods, might increase the risk of endometrial hyperplasia due to its estrogenic effects. Population and clinical research suggests that soy foods do not have a proliferative effect on endometrial cells (7358,2429,7654,9676,9917), and increased dietary soy and phytoestrogens are associated with reduced endometrial cancer risk (7338,10372). However, the effects seem to be different with concentrated soy isoflavone extract. While taking products providing isoflavones 120 mg daily for 6 months does not increase endometrial thickening (13209), taking higher doses such as isoflavones 150 mg daily for 5 years might increase the risk of simple endometrial hyperplasia (12105). However, there is no evidence that soy isoflavones increase the risk of atypical hyperplasia which has a much higher risk of developing into endometrial cancer than simple endometrial hyperplasia (12105,90973).
There is also concern that increased soy intake increases the risk for other types of cancer. Some observational research has found that higher dietary intake of soy is associated with a higher risk for bladder cancer and pancreatic cancer (9677,105609).
A meta-analysis of results from cohort and case-control studies evaluating the risk of stomach cancer related to consumption of fermented soy products is unclear and inconclusive. The highest quality data from cohort studies suggests that these products have no significant effect on stomach cancer (7340,7341). More research is required to determine if soy products have any correlation with stomach cancer.
Pulmonary/Respiratory ...Inhaled soy dust and soy hull aeroallergen can trigger symptoms of asthma and allergic rhinitis (5084,5085,5086).
