MegaFood Blood Builder
by MegaFood
"Clinically shown to increase iron levels without common side effects — the #1 selling iron supplement"
Overview
MegaFood Blood Builder is the #1 selling iron supplement on Amazon and has been clinically shown to increase iron levels without nausea or constipation — the two most common complaints with iron supplements. The formula uses FoodState iron derived from Saccharomyces cerevisiae (nutritional yeast), which is gentler on the stomach than synthetic iron forms. It also includes vitamin C, folate, and B12 to support iron absorption and red blood cell formation. A published clinical study demonstrated that Blood Builder increased iron levels in iron-deficient women without GI side effects.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Iron (FoodState) | 26 mg |
| Vitamin C (FoodState) | 15 mg |
| Folate (FoodState) | 680 mcg DFE |
| Vitamin B12 (FoodState) | 30 mcg |
| Organic Beet Root | Included |
Pros & Cons
What We Like
- Clinically shown to increase iron without GI side effects
- #1 selling iron supplement on Amazon
- Gentle FoodState iron form
- Includes cofactors (C, B12, folate) for absorption
- Certified B Corp, Non-GMO Project Verified
What Could Be Better
- More expensive than basic iron tablets
- Only 26mg iron per tablet
- Tablet form (not capsule)
- Contains yeast-derived ingredients
Who Is This For?
Best For
- Iron-deficient women
- Those who get GI issues from iron
- Pregnant women (consult doctor)
- Vegetarians/vegans needing iron
Not Ideal For
- Those needing very high-dose iron
- Yeast-sensitive individuals
- Those with hemochromatosis
Our Verdict
MegaFood Blood Builder has earned its #1 status by solving the biggest problem with iron supplements: side effects. The clinical study backing its gentle absorption is a major differentiator. If you need iron and have struggled with other brands, this is the one to try.