how effective is this iron on raising ferritin levels?

Very! I just found out that in increased my ferritin levels from 18 (Sept) to 40 (Jan). I was so happy!!! Will definitely continue. Nothing else was helping, I was even considering iron infusions already. So so happy.

What salt form(s) of iron are in this product? What are the amounts of salt form and elemental iron: 520mg and 26mg respectively, or other?

There are 26 mg of elemental iron in each Blood Builder tablet. The iron in this product is in a FoodState form, meaning that it is in the complex form in which iron occurs in food. The food source MegaFood uses to deliver iron is the whole food nutritional yeast Saccharomyces cerevisiae. The 520 mg refers to the weight of S. cerevisiae included in the tablet to deliver the 26 mg of iron.

Which specific kind of iron does this contain? FERROUS sulfate or iron bisglycinate? And it the vitamin CHELATED?

RE: dean's answer: The question asks what form of iron (which is a mineral) does this contain. Cyanocobalamin is a form of a vitamin - vitamin B12 , not iron.

How long does it take for them to start to work ?

To the person who stated they didn't feel anything, did you get your bloodwork tested? Don't rely on feelings! Get your iron level tested when you start this and then get it tested about 1 month after. Your actual blood work will tell whether or not your iron levels are up. Remember, if you take other things, like coffee, that will affect how you "feel", so you need to go by actual tests to determine if your iron levels increase.

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MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - with Vitamin B12, Folic Acid & Vitamin C for Absorption - Vegan - 90 Tablets

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - with Vitamin B12, Folic Acid & Vitamin C for Absorption - Vegan - 90 Tablets

Product ID: 9111189

Details

Brand
MegaFood
Flavor
Unflavored
Item Form
Tablet
Primary Supplement Type
Iron
Unit Count
90 Count

⚡Clinically proven 8-week iron boost

🌱100% vegan & non-GMO

🩸26 mg iron per serving

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VT12121

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Details

Brand
MegaFood
Flavor
Unflavored
Item Form
Tablet

Description

🩸 Elevate your energy and iron game—without the side effects!

VEGAN CLEAN LABEL - Non-GMO, gluten-free, and vegan-certified for conscious, modern lifestyles
ENERGY ENHANCING FORMULA - 26 mg of gentle iron combined with Vitamin B12 and Folic Acid to combat fatigue and support red blood cell production
TRUSTED QUALITY ASSURANCE - Tested for 150+ chemical substances ensuring purity and safety for your daily wellness routine
CLINICALLY PROVEN IRON BOOST - Clinically shown to increase iron levels in just 8 weeks without constipation
ANYTIME ANYWHERE CONVENIENCE - Take one tablet anytime—even on an empty stomach—for flexible, hassle-free supplementation

MegaFood Blood Builder is a clinically tested iron supplement delivering 26 mg of gentle, effective iron per serving, enhanced with Vitamin B12, Folic Acid, and Vitamin C for optimal absorption. Designed for women and men with busy, health-conscious lifestyles, this vegan, non-GMO formula supports red blood cell production and combats fatigue without common side effects like constipation. Convenient and clean, it fits seamlessly into any routine to help you feel energized and iron-strong.

Specifications

ASIN	B000F4ZRCC
Age Range Description	Adult
Allergen Information	Gluten Free
Best Sellers Rank	#658 in Health & Household ( See Top 100 in Health & Household ) #3 in Iron Mineral Supplements
Brand	MegaFood
Brand Name	MegaFood
Customer Reviews	4.6 out of 5 stars 35,580 Reviews
Diet Type	Gluten Free, Vegan
Flavor	Unflavored
Global Trade Identification Number	00051494101957
Item Form	Tablet
Item Weight	8.6 Ounces
Manufacturer	MegaFood
Manufacturer Part Number	10195
Material Type Free	Gluten Free
Model Number	10195
Number of Items	1
Primary Supplement Type	Iron
Product Benefits	Nourishing
UPC	885781277854 785923087566 051494101957 051494901212 187940657140 885782113793
Unit Count	90 Count

Reviews

G**G

30.04.2026

A**R

23.03.2026

C**B

31.03.2026

J**N

23.12.2025

A**R

12.04.2026

M**D

8.04.2026

N**S

13.04.2026

S**P

5.04.2026

S**1

1.04.2026

S**I

4.05.2018

A**L

27.11.2025

K**Y

13.03.2026

S**.

14.05.2025

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