Nutritional Yeast Flakes
Price
Retail
$19.95
Container
30 servings
Serving
10 Grams
Brand Quality
Why this score
Testing practices
- Lot Tested
- Third-Party Lab Tested
- Transparent Batch-Specific COAs
- ISO 17025 Lab
Testing coverage
- Identity
- Purity
- Potency
- Heavy Metals
- Raw Ingredient Testing
Certifications
- NSF Certified
- USDA Organic Certified
Manufacturing standards
- cGMP Certified
- Made in USA
Innovation
- Clinically Studied Product
Active Ingredients
- 40 Calories
Calories
- 1 Gram
Total Fat
- 4 Grams
Total Carbohydrates
From 2 Grams Dietary Fiber
From 1.5 Grams Total Sugars
- 5 Grams
Protein
Ingredient research · Protein
Protein is a concentrated way to supply amino acids needed to build and repair body tissues. Supplementation can help meet higher or otherwise unmet protein needs, supporting muscle growth and exercise recovery when paired with training and helping preserve muscle during aging, illness, or calorie restriction.
- Supports selected muscle-strength outcomes when increased protein intake accompanies resistance training.
- Supports selected muscle-mass outcomes when protein supplementation accompanies resistance exercise in community-dwelling older adults with sarcopenia.
- Supports a selected post-meal hunger outcome under a controlled high-protein weight-loss diet.
Top References
- Synergistic Effect of Increased Total Protein Intake and Strength Training on Muscle Strength: A Dose-Response Meta-analysis of Randomized Controlled Trials
- The effectiveness of protein supplementation combined with resistance exercise programs among community-dwelling older adults with sarcopenia: a systematic review and meta-analysis
- Responses in gut hormones and hunger to diets with either high protein or a mixture of protein plus free amino acids supplied under weight-loss conditions
- 35 mcg
Vitamin D
Ingredient research · Vitamin D
Vitamin D is a hormone-like nutrient that helps the body absorb calcium and maintain healthy bones and muscle function. Supplementation can reliably prevent or correct low vitamin D status, particularly when sun exposure is limited, while broader immune, cardiovascular, and metabolic benefits are less certain.
- Supports bone-density and fracture- or fall-related outcomes.
- Supports muscle-strength outcomes, including lower-limb strength.
- Supports glycemic-marker and insulin-sensitivity outcomes in studied metabolic populations.
- Supports respiratory-infection-risk outcomes across studied age groups.
Top References
- Effects of combined calcium and vitamin D supplementation on osteoporosis in postmenopausal women: a systematic review and meta-analysis of randomized controlled trials.
- What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta‐analysis
- Clinical review: The effect of vitamin D on falls: a systematic review and meta-analysis.
- Effect of Vitamin D Supplementation on Muscle Strength, Gait and Balance in Older Adults: A Systematic Review and Meta‐Analysis
- The effects of vitamin D on skeletal muscle strength, muscle mass, and muscle power: a systematic review and meta-analysis of randomized controlled trials.
- Effect of vitamin D supplementation on muscle strength: a systematic review and meta-analysis
- What is the impact of vitamin D supplementation on glycemic control in people with type-2 diabetes: a systematic review and meta-analysis of randomized controlled trails
- The Effect of Vitamin D Supplementation on Glycaemic Control in Women with Gestational Diabetes Mellitus: A Systematic Review and Meta-Analysis of Randomised Controlled Trials
- The Role of Vitamin D Oral Supplementation in Insulin Resistance in Women with Polycystic Ovary Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
- Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis.
- Vitamin D supplementation to prevent acute respiratory infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials.
- Vitamin D and Respiratory Tract Infections: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
- 1 mg
Thiamine
Ingredient research · Thiamine
Thiamine is vitamin B1, an essential nutrient that helps convert carbohydrates into usable energy and supports normal nerve and heart function. Supplementation reliably prevents or corrects deficiency, with particular relevance when absorption or intake is impaired, including in chronic heavy alcohol use.
- Supports depression-treatment response when used alongside standard antidepressant treatment.
- 6.5 mg
Riboflavin
Ingredient research · Vitamin B2
Vitamin B2 is riboflavin, an essential nutrient that helps enzymes release energy from food and supports normal red blood cell, skin, and nervous-system function. Supplementation reliably prevents or corrects deficiency, and regular use can reduce migraine frequency and severity in some people.
- Supports blood-pressure control in treated hypertensive adults with the MTHFR 677TT genotype.
Top References
- 35 mg
Niacin
Ingredient research · Niacin
Niacin is vitamin B3, essential for enzymes that convert food into energy and support normal skin and nervous-system function. Supplementation prevents or corrects deficiency; in high-dose nicotinic acid form it can alter cholesterol and triglycerides, but this pharmacologic use is distinct from routine nutritional supplementation.
- Supports favorable changes in selected cholesterol fractions, including LDL, HDL, and total cholesterol, in studied metabolic and diabetes populations.
- Supports favorable fasting-triglyceride changes in studied adults with diabetes or metabolic dysregulation.
Top References
- Effectiveness of niacin supplementation for patients with type 2 diabetes
- Effect of niacin on lipids and glucose in patients with type 2 diabetes: A meta-analysis of randomized, controlled clinical trials.
- Niacin induces miR-502-3p expression which impairs insulin sensitivity in human adipocytes
- Postprandial triglyceride responses to aerobic exercise and extended-release niacin.
- 2 mg
Vitamin B6
Ingredient research · Vitamin B6
Vitamin B6 is an essential nutrient that helps enzymes process amino acids and supports neurotransmitter, hemoglobin, and immune function. Supplementation reliably corrects deficiency and can reduce nausea during pregnancy; outside these uses, it is most relevant when intake or absorption is inadequate.
- Supports depressive-symptom measures in premenopausal women with hormone-related contexts.
- 400 mcg DFE
Folate
Ingredient research · Folate
Folate is vitamin B9, an essential nutrient needed for DNA synthesis, cell division, and healthy red blood cell formation. Supplementation is especially important before conception and in early pregnancy because adequate folate reliably reduces neural tube defect risk, and it can also correct folate-deficiency anemia.
- Supports homocysteine measures in women with PCOS and adults with metabolic syndrome.
- Supports insulin and beta-cell-function markers in women with PCOS or cervical intraepithelial neoplasia.
- Supports selected lipid-panel and vascular markers in women with PCOS and adults with metabolic syndrome.
- Supports selected inflammation and oxidative-stress biomarkers in PCOS, metabolic syndrome, or cervical intraepithelial neoplasia.
Top References
- The effects of folate supplementation on inflammatory factors and biomarkers of oxidative stress in overweight and obese women with polycystic ovary syndrome: a randomized, double‐blind, placebo‐controlled clinical trial
- Metabolic response to folate supplementation in overweight women with polycystic ovary syndrome: a randomized double-blind placebo-controlled clinical trial.
- The Effects of Folate Supplementation on Carotid Intima-Media Thickness and Metabolic Status in Patients with Metabolic Syndrome
- Effects of long-term folate supplementation on metabolic status and regression of cervical intraepithelial neoplasia: A randomized, double-blind, placebo-controlled trial.
- 9 mcg
Vitamin B12
Ingredient research · Vitamin B12
Vitamin B12 is an essential nutrient needed for red blood cell formation, DNA synthesis, and normal nerve function. Supplementation reliably prevents or corrects deficiency—especially when intake or absorption is limited—and may improve anemia, fatigue, or neurologic symptoms caused by low B12, but is not a general energy booster when status is adequate.
- Supports vitamin B12 status and responsive deficiency markers in low-status populations, including maternal and breast-milk status during pregnancy and early lactation.
Top References
- Studies of biomarker responses to intervention with vitamin B-12: a systematic review of randomized controlled trials.
- A vitamin B-12 supplement of 500 μg/d for eight weeks does not normalize urinary methylmalonic acid or other biomarkers of vitamin B-12 status in elderly people with moderately poor vitamin B-12 status.
- Vitamin B-12 supplementation during pregnancy and early lactation increases maternal, breast milk, and infant measures of vitamin B-12 status.
- 2 mcg
Biotin
Ingredient research · Biotin
Biotin is an essential B vitamin that helps enzymes process fats, carbohydrates, and amino acids. Supplementation reliably prevents or corrects deficiency, but extra biotin has not been shown to improve hair, skin, or nails in most people who are not deficient, and high intakes can distort certain laboratory test results.
- 10 mg
Pantothenic Acid
Ingredient research · Vitamin B5
Vitamin B5 is an essential nutrient used to make coenzyme A, a molecule central to releasing energy from food and building and breaking down fats. Supplementation prevents or corrects deficiency, but deficiency is uncommon and taking extra pantothenic acid has no clearly established benefit for most otherwise well-nourished people.
- 25 mg
Zinc
Ingredient research · Zinc
Zinc is an essential mineral needed for hundreds of enzymes, DNA and protein synthesis, immune defense, wound healing, and normal growth. Supplementation corrects low zinc status and helps restore these functions; certain zinc lozenges may also modestly shorten a common cold when used early, though this benefit depends on the formulation.
- 200 mg
Potassium
Ingredient research · Potassium
Potassium is an essential electrolyte that helps regulate fluid balance, nerve signaling, and muscle contraction, including the heartbeat. Supplementation is most useful for preventing or correcting low potassium when intake is inadequate or losses are increased, while adequate potassium intake also contributes to healthy blood pressure.
- Supports blood-pressure control, particularly in adults with hypertension and higher sodium or lower potassium intake.
- Supports selected vascular-function responses after high-sodium meals in healthy adults.
Top References
- The effect of potassium supplementation on blood pressure in hypertensive subjects: A systematic review and meta-analysis.
- Effect of sodium and potassium supplementation on vascular and endothelial function: a randomized controlled trial.
- Postprandial effects of potassium supplementation on vascular function and blood pressure: a randomised cross-over study.
Ranking
Inactive Ingredients
10 Ideal
- Nutritional YeastIdeal
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