MegaFood Blood Builder Liquid Iron Review
Blood Builder Liquid Iron Once Daily is a one-daily liquid iron from MegaFood, sold in a 23 day, 7.7 oz bottle. The page describes it as formulated to support healthy energy levels and to be non-constipating and gentle on the stomach. Each serving delivers 27 mg of iron. The liquid is made with real tart cherry and fruit juice concentrates to give it what the brand calls a unique orchard fruit flavor. MegaFood states that the product is safe for teenage girls, vegans and vegetarians, athletes and recent blood donors, all of whom the page says are at increased risk of being low in iron. The suggested use for ages 4 and up is 3 mL daily, while adults should take 2 teaspoons (10 mL) once daily. The label instructs the user to shake well before use. The page also states that the product is Non-GMO Project Verified, Glyphosate Residue Free, Gluten Free, made without nine common allergens (milk, eggs, peanuts, tree nuts, soy, wheat, fish, shellfish and sesame), and Vegan. MegaFood presents the product as part of its iron range, noting that its exclusive fermented iron form has been clinically shown to increase iron levels without side effects in both the tablet and liquid versions. A linked clinical study PDF for the liquid is provided on the page. The product is offered as a one-time purchase at $24.99, or at a discounted subscription price of $22.49 with Subscribe and Save. Shipping within the US is free over $50, and the page notes that customers earn loyalty points on purchases. The description positions the liquid as a convenient alternative for people who dislike swallowing pills and want an iron supplement that is easy on digestion.
Study, Trial or Testing Result Summary
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3 of these 14 human studies gave the ingredient by drip, not by mouth.
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Review Totals and Summary
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Biohacker Summary
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RAL Summary
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More Details
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Supplement Facts
Vitamin B12 3 mcg · Iron 8 mg · Vitamin B12 5 mcg
| Calories (Kids 4 and older, Women over 50, and Men) | 10 | |
| Total Carbohydrate (Kids 4 and older, Women over 50, and Men) | 2 g | 1% |
| Total Sugars (Kids 4 and older, Women over 50, and Men) | 0 g | † |
| Vitamin B12 (as cyanocobalamin) (Kids 4 and older, Women over 50, and Men) | 3 mcg | 125% |
| Iron (as fermented iron bisglycinate) (Kids 4 and older, Women over 50, and Men) | 8 mg | 44% |
| Calories (Women Ages 14-50) | 15 | |
| Total Carbohydrate (Women Ages 14-50) | 3 g | 1% |
| Total Sugars (Women Ages 14-50) | 0 g | † |
| Vitamin B12 (as cyanocobalamin) (Women Ages 14-50) | 5 mcg | 208% |
| Iron (as fermented iron bisglycinate) (Women Ages 14-50) | 14 mg | 78% |
| Calories (Pregnant / Lactating Women) | 30 | |
| Total Carbohydrate (Pregnant / Lactating Women) | 7 g | 3% |
| Total Sugars (Pregnant / Lactating Women) | 1 g | † |
| Vitamin B12 (as cyanocobalamin) (Pregnant / Lactating Women) | 10 mcg | 357% |
| Iron (as fermented iron bisglycinate) (Pregnant / Lactating Women) | 27 mg | 100% |
Other ingredients: Other Ingredients: Organic glycerin, water, apple juice concentrate, pear juice concentrate (Pyrus sp.), tart cherry juice concentrate, natural flavors, beetroot juice concentrate.
Directions: Suggested Use: Shake well before use. Take about 1/2 teaspoon (3 mL) - 1 teaspoon (5 mL) daily, or as directed by your health care provider. Pregnant or lactating women, take 2 teaspoons (10 mL) daily or as directed by your health care provider.
Label source: Megafood · Report a label change
Where to Buy
MegaFood · Walmart · Vitacost
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Graded October 28, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

