Chia Seed Oil 1000 mg by Wonder Laboratories

POSSIBLY INEFFECTIVE

• Hyperlipidemia. A meta-analysis of small clinical studies suggests that consuming chia seeds, flour, powder, or oil for 7-24 weeks does not improve lipid levels in patients with conditions associated with hyperlipidemia. Details: A meta-analysis of 10 small clinical trials in patients with various metabolic conditions, including diabetes, metabolic syndrome, nonalcoholic fatty liver disease, and obesity, shows that consuming chia seeds, flour, or powder 15-60 grams daily for 7-24 weeks, or taking chia oil 6 grams daily for 8 weeks, does not reduce total cholesterol, low-density lipoprotein (LDL) cholesterol, or triglyceride levels or increase high-density lipoprotein (HDL) cholesterol levels when compared with control groups consuming wheat bran, oat bran, dietary fiber, poppy seeds, or soybean oil (106657). While the patient populations in the studies analyzed are more likely to develop hyperlipidemia, it is unclear if these findings can be generalized to patients diagnosed with hyperlipidemia.
• Obesity. Small clinical studies suggest that consuming chia seeds for up to 12 weeks does not reduce body weight in overweight or obese adults. Details: One small clinical study in overweight or obese individuals shows that ingesting chia seeds 25 grams mixed in 0.25 liters of water twice daily before meals for 12 weeks does not improve body composition or reduce blood pressure when compared with placebo (25533). Another small clinical study in overweight, postmenopausal females shows that ingesting milled or whole chia seeds 25 grams daily for 10 weeks does not improve body composition or blood pressure when compared to baseline (25532).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Athletic performance. It is unclear if oral chia is beneficial for improving athletic performance. Details: A small clinical study in trained athletes shows that drinking a beverage containing 50% of calories from chia seeds (Greens Plus Omega 3 Chia seeds) and 50% of calories from a carbohydrate-containing beverage (Gatorade) for 2 days prior to participating in an endurance exercise lasting more than 90 minutes leads to similar performance when compared with Gatorade alone (25531).
• Cardiovascular disease (CVD). Although there has been interest in using oral chia for CVD, there is insufficient reliable information about the clinical effects of chia for this purpose.
• Diabetes. Small clinical studies suggest that consuming chia for 4-6 months might reduce systolic blood pressure (SBP) in patients with type 2 diabetes, although it does not appear to improve glycemic control or lipid levels and has shown mixed effects on body weight and inflammatory markers. Details: One small clinical trial in patients with type 2 diabetes shows that consuming bread containing a specific, selectively bred type of chia (Salba, Salba Smart Natural Products LLC), providing 37 grams of chia daily for 12 weeks reduces SBP, C-reactive protein, and vonWillebrand factor, but not lipid levels, when compared with consuming bread containing wheat bran. This form of chia also significantly reduced glycated hemoglobin (HbA1c) when compared to baseline, but not when compared with a wheat bran control (16124). Another small clinical study in adults with type 2 diabetes and obesity shows that consuming Salba chia 40 grams daily, either baked into bread or as a powder, in conjunction with a restricted calorie diet for 6 months reduces weight by 1.6 kg and waist circumference by 2.8 cm when compared with an oat bran control. However, consuming chia had no effect on body fat percentage, HbA1c, or fasting glucose levels (97940). Also, a small clinical study in adults with type 2 diabetes shows that consuming chia seeds 40 grams daily for 12 weeks reduces SBP, but does not improve body weight, HbA1c, or levels of fasting glucose, lipids, or C-reactive protein, when compared with those not consuming chia (106658).
• Hypertension. It is unclear if oral chia is beneficial in patients with hypertension. Details: A very small clinical study in patients with mild hypertension shows that consuming chia flour 35 grams daily for 12 weeks reduces systolic blood pressure (SBP) by around 10 mm Hg and diastolic blood pressure (DBP) by almost 9 mm Hg when compared to baseline. In patients already taking antihypertensive drugs, chia seems to have an even greater impact on SBP and DBP. However, in patients not being treated with antihypertensive drugs, chia flour modestly reduces SBP by 6.5%, but does not significantly reduce DBP. No improvements in blood pressure were reported in patients consuming a wheat bran control (91516).
• Nonalcoholic fatty liver disease (NAFLD). It is unclear if oral chia is beneficial in patients with NAFLD. Details: Small, uncontrolled clinical studies in patients with NAFLD show that consuming milled chia seeds 25 grams daily for 8 weeks may reduce hepatic steatosis, as measured by the liver: spleen attenuation ratio, in up to 43% of subjects with prediabetes and 100% of subjects with diabetes when compared to baseline. Chia seed supplementation may also modestly reduce visceral fat, body mass index, and waist circumference in patients with prediabetes when compared to baseline, but does not seem to improve lipid levels (104530,110438). The validity of these findings is limited by the lack of a comparator group in both studies.
• Metabolic syndrome. Oral chia has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in patients with metabolic syndrome shows that reducing daily caloric intake by 500 kcal and drinking a beverage containing chia seed 4 grams, soy protein 32 grams, dehydrated nopal 7 grams, and oat 22 grams daily for 2 months reduces body weight, body mass index, and waist circumference when compared to baseline, but not when compared with following a reduced calorie diet alone. However, following the reduced calorie diet and drinking this beverage appears to lower serum triglycerides and C-reactive protein and improve glucose tolerance when compared with a reduced calorie diet alone (25534). It is unclear if these findings are due to chia, other ingredients, or the combination.
• Muscle strength. It is unclear if oral chia is beneficial for increasing muscle strength and muscle mass during resistance training. Details: A very small clinical trial in healthy, non-resistance trained males shows that drinking a supplemental beverage containing chia flour 50 grams, providing 20 grams of protein and 3 grams of omega-3 fatty acids, is no more effective than whey protein 20 grams or placebo for augmenting the increases in muscle strength and fat-free mass that occur with an 8-week whole body resistance training program (112385). The habitual baseline diet of the study participants already contained dietary protein intakes recommended for strength training, and the beverage was only consumed three times per week immediately after training sessions.
• Pruritus. It is unclear if topical chia seed oil is beneficial in patients with pruritus. Details: One very small, uncontrolled clinical study in patients with xerotic pruritus or pruritus caused by kidney failure or diabetes shows that applying lotion containing chia seed oil 4% for 8 weeks improves skin hydration and reduces the severity of lichen simplex chronicus and prurigo nodularis when compared to baseline (25537). The validity of these findings is limited by the small study size and lack of a comparator group. More evidence is needed to rate chia for these uses.

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LIKELY SAFE ...when used orally in amounts commonly found in foods (104531,104532).

POSSIBLY SAFE ...when used orally and appropriately in medicinal amounts, short-term. Chia has been used safely at doses up to 40 grams daily for up to 6 months (16124,97940). ...when used topically, short-term. A product containing chia seed oil 4% has been applied to the skin safely for up to 8 weeks (25537).

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

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General ...Orally and topically, chia seems to be well tolerated.
Most Common Adverse Effects:
Orally: Flatulence and soft stools.
Serious Adverse Effects (Rare):
Orally: Anaphylaxis in sensitive individuals.

Cardiovascular ...Chia contains a high concentration of alpha-linolenic acid (ALA). There is some concern that ALA might increase triglyceride levels more than other omega-3 fatty acids (12918); however, clinical research with a specific variety of chia called Salba shows that it does not significantly increase triglyceride levels (16124).

Gastrointestinal ...Orally, chia might cause mild gastrointestinal adverse effects. Some patients consuming chia 40 grams daily for up to 6 months reported mild and transient gastrointestinal adverse effects such as flatulence and soft stools; however, the frequency of these adverse effects was similar to patients consuming an oat bran control (97940). Bloating and flatulence have been reported with a chia flour-based sports beverage (112385).

Immunologic ...Orally, chia might cause anaphylaxis in sensitive individuals. A single case of IgE-mediated anaphylactic reaction has been reported for a patient who consumed chia seeds. Symptoms, including pruritus in the mouth, urticaria, facial angioedema, shortness of breath, and dizziness, developed a few days after consuming chia seeds. The reaction was attributed to sensitivity to proteins in chia seeds (91517).

Oncologic ...Chia seeds contain a high concentration of alpha-linolenic acid (ALA). Epidemiologic research suggests that high dietary intake of ALA might increase risk for prostate cancer (1337,2558,7823,7147,12978). Other research suggests high intake or serum levels of ALA does not increase the overall risk of prostate cancer (12961,15736); however, it might increase the risk of advanced prostate cancer (12961). Association with prostate cancer appears to depend on the sources of ALA. Dairy and meat sources have been positively associated with prostate cancer, whereas plant sources, such as chia seed, don't seem to affect prostate cancer risk (12909). According to a clinical trial, intake of ALA does not appear to increase levels of prostate specific antigen (PSA) (91402).

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