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Low in energy? You could be low in iron. Our top-selling iron supplement is clinically shown to increase iron levels without nausea or constipation.† Crafted with real food like organic oranges and key nutrients like B12 to combat fatigue plus vitamin C to support iron absorption.† Gentle enough to take anytime of day.
Clinical Study Results
1 serving of Blood Builder per day for 8 weeks was shown to significantly increase energy and decrease fatigue. †
Read the Clinical StudyBlood Builder supports red blood cell production, improves energy levels & combats fatigue; ideal for those with higher Iron needs, including menstruating women, teenage girls, vegans & vegetarians, athletes & recent blood donors+
Yes. This Iron supplement for women & men was shown in an 8-week clinical trial to increase Iron levels in individuals with low Iron without causing GI side effects, like nausea or constipation; it is gentle enough to be taken on an empty stomach+
Each serving provides 26mg of Iron; Blood Builder is formulated with high-absorption Iron Bisglycinate (better absorbed than non-chelated forms of Iron, such as ferrous sulfate), and Vitamin C to support Iron absorption & immune health+
Adults take one convenient tablet daily with a beverage; May be taken any time of day, even on an empty stomach; do not exceed recommended intake; consult your physician before use if you’re on medication or have a medical condition.
Yes. Blood Builder is vegan, non-GMO, gluten-free, Kosher, third-party tested for over 150+ chemical substances, and made without the top nine food allergens—wheat, dairy, eggs, tree nuts, peanuts, soy, fish, shellfish or sesame.
Iron is an important mineral, helping deliver oxygen from our lungs to our entire body. Without adequate iron stores, you may not be able to get enough oxygen delivered to all your tissues, which could result in fatigue, muscle weakness upon exertion, pale skin and inability to stay warm.
According to the CDC, 1 in 10 women is at risk for an iron deficiency.
Low iron can be a result of low dietary intake, poor absorption and/or excessive blood loss over time, increased demand during pregnancy.
Obtaining enough iron is often easier said than done, especially if you’re on a vegan or vegetarian diet. Additionally, it’s important to note that iron relies on other nutrients, like vitamin C, to properly absorb into the bloodstream.
We also offer Blood Builder Minis (a convenient mini tab version of Blood Builder) and Blood Builder Liquid Iron One Daily (a convenient, once-daily liquid iron format).
We recommend taking a daily multivitamin to help address any gaps in your diet and support your optimal health. † We also have supplements to support a range of health needs, like Immune Health, Sleep & Stress,Digestion, Healthy Aging and more. Check out our family of premium, quality vitamins & supplements.
Overall rating: 4.750297 / 5 from 841 reviews.
Blood Builder™ Iron Supplement is praised for its effectiveness in increasing energy levels and maintaining iron levels without causing nausea or constipation. Customers appreciate its gentle formula and the inclusion of organic ingredients and key nutrients like B12 and vitamin C. While some users report slight constipation, the overall feedback highlights its positive impact on well-being and energy recovery.
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"Mega food blood builder iron supplement is the only one I can take to help boost my iron with stomach problems. My iron is typically on the lower side and this supplement has been just right. I take it on occasions where I feel my iron is low or a day before I donate blood."
"Blood Builder has done wonders for me. I've been hit with a bad bout of arthritis in 2024 and was put on medication. My count has tipped downward some after maintaining a steady and perfect count since I started the therapy years ago. This month I am due for a retest and follow-up with my Hematologist. There were a few days where I have forgotten to take my supplements which may have contributed to that fact. I have once again been faithful in my scheduling consumption and have no doubt my count has risen to the perfect levels it has maintained since the beginning. Thank you MegaFood. I would like to explore a quality of B12 or a all B complex so any info you can send my way would be great."
"Lots of people report difficulties taking iron, but I've never experienced any side effects from taking blood builder. I love it!"
"I have low ferritin and iron deficiency, and my doctor recommended Blood Builder because it’s gentle on my stomach and I can take it without food. It also has vitamin C to help with absorption, plus B12 and folate to support red blood cell production. My iron and ferritin levels have improved a lot."
"Shared this product with my mom as her iron was very low, Her provider wanted her to try some drug store brand supplement. I asked her to try this and when she went back for her test result her iron was in normal range, She showed her provider what she was taking and he is now aware of Blood Builder by Mega Food."
"My energy, stamina, and hair are all back! No gut issues either. This is the best iron supplement I have ever taken."
"Tablets are perfectly sozed and very easy to swallow. No constipation or upset stomach. Feeling a lot more energized and can not wait for my f/u visit for my repeat blood work. Need to get my iron level way up!"
"Love this supplement! No upset stomach! No constipation. Consistent daily use has increased my iron levels and energy. It’s been a game changer for me."
"Awful- after 2 doses, immediately made me very ill. No response from customer service when I emailed about a return."
"This needs to be updated with Folate instead of folic acid. Really doing a disservice."
