BREWERS YEAST 10 GR 650mg - 200 tabs

by NOW FOODS

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UPC: 733739024107: # N2410

BREWERS YEAST 10 GR 650mg - NOW Foods 200 Tablets (Item #N2410)

Unadulterated Whole Food B-Vitamin Matrix, Glucose Tolerance Factor (GTF) Chromium, and Essential Amino Acids in Easy-to-Swallow 10-Grain Tablets.

Formula: Inactive, Debittered Saccharomyces cerevisiae

Strength: 10 Grain (approx. 650 mg per tablet)

Serving Size: 3 Tablets (1,950 mg total yeast)

Quantity: 200 Tablets (66 Servings)

Quality Standards: Non-GMO, Vegan/Vegetarian, Halal, Kosher, GMP Assured

Whole-Food Cellular Nutrition: What Is Brewer's Yeast 10 Grain (650 mg)?

Unlike isolated synthetic vitamins manufactured in chemical laboratories, NOW® BREWERS YEAST 10 GR 650mg (SKU: N2410) delivers complete, bioavailable nutrition directly from non-fermenting, dried whole cells of Saccharomyces cerevisiae. Historically prized as a cornerstone of traditional restorative nutrition, brewer's yeast is naturally rich in vital cofactors, trace minerals, complex carbohydrates (beta-glucans and mannans), and genuine peptide-bound B-vitamins. The designation "10 Grain" (10 gr) is an apothecary unit of mass historically used in pharmacopeias, where 1 grain equals approximately 64.8 milligrams. A 10-grain dosage yields precisely 650 mg of pure brewer's yeast per tablet, offering an adjustable, digestible whole food supplement without unneeded fillers or synthetic spiking.

Scientifically Studied Benefits & Biochemical Actions

1. Naturally Occurring Coenzymatic B-Complex for Cellular Energy

Brewer's yeast acts as an organic reservoir of water-soluble B vitamins essential for mitochondrial ATP generation and red blood cell formation. Rather than synthetic isolates, this whole food delivers balanced levels of:

Thiamine (Vitamin B1) & Riboflavin (Vitamin B2): Essential cofactors in carbohydrate oxidation and the Krebs cycle.
Niacin (Vitamin B3): Precursor to NAD+/NADH, supporting cellular repair and vascular tone.
Pyridoxine (Vitamin B6): Fundamental for amino acid neurotransmitter synthesis (serotonin, dopamine, GABA).
Biotin (Vitamin B7) & Pantothenic Acid (Vitamin B5): Structural regulators for fatty acid synthesis, adrenal support, and keratin architecture in hair, skin, and nails.
Folate (Vitamin B9): Supports continuous DNA synthesis and methylation pathways.

2. Natural Glucose Tolerance Factor (GTF) Chromium for Metabolic Health

Brewer's yeast is one of the densest dietary sources of organically bound trivalent chromium ($Cr^{3+}$), often referred to as Glucose Tolerance Factor (GTF). Clinical literature indicates that biologically active chromium acts synergistically with endogenous insulin, sensitizing cell-surface insulin receptors and assisting in glucose clearance from the bloodstream.

3. Breastfeeding Support: A Traditional Herbal Galactagogue

For nursing mothers, brewer's yeast 650 mg tablets are widely recommended by international board-certified lactation consultants (IBCLCs). Brewer's yeast contains dietary beta-1,3/1,6-D-glucans, polysaccharide structures that stimulate macrophage activity and promote the physiological pathways that support healthy prolactin release - the primary hormone responsible for sustained breast milk production.

4. Skin, Hair, and Keratin Infrastructure

With roughly 50% of its dry weight consisting of complete protein - including all nine essential amino acids—alongside trace minerals such as selenium and zinc, regular brewer's yeast supplementation helps provide the biochemical building blocks needed to support skin elasticity, brittle nail strength, and hair follicle vitality.

Brewer's Yeast vs. Nutritional Yeast: Understanding the Difference

While both nutritional supplements derive from the micro-organism Saccharomyces cerevisiae, their cultivation medium and nutritional matrix differ significantly:

Feature	NOW® Brewer's Yeast 10 Grain (650 mg)	Standard Nutritional Yeast
Primary Growth Medium	Barley malt and grain mash (derived from brewing wort)	Cane molasses or beet molasses
Chromium Profile	High natural GTF trivalent chromium concentration	Negligible unless synthetically fortified
Vitamin Profile	100% naturally occurring whole food cofactors	Often fortified with synthetic cyanocobalamin (B12), thiamine, etc.
Flavor & Format	Debittered, neutral tablet form (easy to swallow)	Cheesy, nutty flakes or loose powder
Primary Use Cases	Blood sugar support, lactation support, skin/hair/energy	Culinary seasoning, vegan cheese alternative

Important Medical Cautions, Contraindications, and Interactions

Clinical Safety Notice (YMYL Compliance): As with any concentrated whole-food supplement, consult your primary healthcare physician prior to initiating use, particularly if you have pre-existing medical conditions or are taking prescription medications.

MAOI Interaction (Tyramine Warning): Brewer's yeast naturally contains substantial levels of tyramine. Individuals taking Monoamine Oxidase Inhibitors (MAOIs) such as phenelzine, tranylcypromine, or selegiline must not consume brewer's yeast, as it may precipitate a severe hypertensive crisis.
Crohn's Disease: Persons with Crohn's disease frequently present with circulating Anti-Saccharomyces cerevisiae Antibodies (ASCA). Brewer's yeast supplementation may trigger an adverse immune reaction or exacerbate gut inflammation in this demographic.
Diabetes Medications: Because the organic chromium in brewer's yeast naturally enhances insulin sensitivity, individuals using insulin or oral hypoglycemic agents (e.g., metformin, glipizide) should monitor blood sugar closely to avoid hypoglycemia.
Gout & Hyperuricemia: Yeast contains purines, which metabolize into uric acid. Patients with a history of recurrent gout or kidney stones should exercise medical supervision.
Allergies: Derived from barley and wheat. Contains gluten. Not suitable for individuals with celiac disease or severe yeast allergies.

Complete Ingredient Listing & Supplement Facts

Supplement Facts

Serving Size: 3 Tablets

Servings Per Container: 66

Amount Per Serving	% Daily Value*
Calories	5
Total Carbohydrate	1 g (< 1%*)
Protein	1 g (2%*)
Brewer's Yeast (Dried, Inactive)	1.95 g (1,950 mg)†

* Percent Daily Values are based on a 2,000 calorie diet. † Daily Value not established.

Detailed Ingredient Breakdown:

Active Ingredient: Dried, debittered Brewer's Yeast (Saccharomyces cerevisiae) providing naturally occurring B-vitamins (B1, B2, B3, B5, B6, B7, B9), amino acids, beta-glucans, and trace minerals.
Other (Inactive) Excipients: Hydroxypropyl Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Magnesium Stearate (vegetable source), and Silicon Dioxide.
Allergen Declaration: Contains wheat/barley. Not manufactured with soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a certified Good Manufacturing Practices (GMP) facility.

Suggested Usage & Storage Directions

Directions: As a dietary whole food supplement, take 3 tablets 3 times daily with meals, or as directed by your qualified healthcare provider. Swallow with 8 ounces of water. Storage: Store in a cool, dry place after opening with the lid tightly sealed. Natural color variations are normal in whole food yeast products.

Frequently Asked Questions About Brewer's Yeast 10 Grain (650 mg)

What does "10 Grain" mean on this brewer's yeast bottle?

"Grain" is an ancient apothecary unit of weight where 1 grain equals approximately 64.8 milligrams. A "10 Grain" tablet contains roughly 650 milligrams of dried brewer's yeast, allowing accurate and standardized whole food serving control.

Can brewer's yeast cause a Candida or fungal yeast infection?

No. NOW Brewer's Yeast is dried and inactive (non-viable). It cannot multiply or ferment in the human gastrointestinal tract or trigger Candida albicans yeast overgrowth. However, individuals with diagnosed yeast allergies should avoid it.

How does brewer's yeast support breastfeeding and milk supply?

Brewer's yeast is a well-known natural galactagogue. It delivers dense concentrations of B vitamins, iron, and trace minerals to replenish maternal energy stores, while its cellular beta-glucan content is clinically associated with supporting healthy prolactin production.

Are there synthetic vitamins added to this brewer's yeast supplement?

No. NOW Brewer's Yeast 650 mg tablets are a genuine whole-food supplement. No synthetic or isolated vitamins are fortified or added during processing; all B vitamins, amino acids, and minerals occur naturally within the yeast matrix.

Why can't I take brewer's yeast if I am on an MAO inhibitor (MAOI)?

Brewer's yeast contains tyramine, an amino acid derivative that regulates blood pressure. Monoamine Oxidase Inhibitors (MAOIs) block the enzyme that metabolizes tyramine. Combining them can lead to dangerous surges in blood pressure (hypertensive crisis).

Helpful Customer Reviews