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💪 Elevate your energy and endurance with the iron supplement pros trust!
THORNE Iron Bisglycinate delivers 25 mg of elemental iron per capsule in a highly absorbable, non-constipating form. NSF Certified for Sport and trusted by elite athletes, it supports blood building and combats fatigue without gastrointestinal discomfort. Gluten-free and vegetarian, this supplement is a clean, science-backed choice for professionals seeking peak performance and vitality.



























| Brand | THORNE |
| Flavour | Unflavored |
| Item form | capsules |
| Primary supplement type | Iron |
| Product benefits | Sports Performance |
| Unit count | 60 Count |
K**N
Real help 👌🏻
My favorite iron 👍🏻👍🏻👍🏻good for stomach. Fast delivery ⭐️good package ⭐️affordable price ⭐️ Thank you Seller
H**H
Excellent results
This is the best supplement among the several I tried. I increased my hemoglobin levels from 110 to 130 in one month in the third trimester of pregnancy when doctors prescribed IV which I refused. I was taking 4 pills every second day with vitamin C. No side effects on stomach and no constipation
Y**H
Nice
Help full not disturb your stomach
I**T
Works
Works well
R**.
THORNE Iron Bisglycinate - 25 mg
I’m very satisfied with the experience. The product arrived in good condition, properly packaged, and securely sealed. Everything was exactly as expected.
W**E
Iron Without the Tummy Troubles—Finally!
Thorne Iron Bisglycinate is a total game-changer for anyone who needs an iron boost but dreads the usual stomach drama. It’s gentle on digestion—no cramps, no nausea, and no awkward rush to the bathroom (you know what I mean). I’ve been taking it daily, and my energy levels have noticeably improved, especially during workouts and long days. The capsules are small and easy to swallow, and it’s NSF Certified for Sport, which gives me peace of mind that it’s clean and free from junk. Plus, it’s gluten-free, so no worries for those with sensitivities. The only downside? It’s on the pricier side for an iron supplement, but the lack of side effects makes it worth every penny. Also, you’ll need to pair it with vitamin C-rich foods or drinks to maximize absorption, but that’s an easy fix (hello, orange juice!). If you’re tired of iron supplements that make you feel worse than being anemic, this one’s a must-try. It delivers results without any of the hassle. 4.8/5
X**A
Easy to tolerate
Easy to tolerate and doesnt cause side effects.
J**Y
Good
Good
S**L
Oxidize quickly
These are gentle on the stomach but beware of oxidation. I had them for around a year and by the end and after comparing to the new pack, these were completely oxidized (brown) and probably completely ineffective. Best to use them up quickly.
M**D
Gentle, Effective, and Easy
I've tried several iron supplements over the years, and this one has been by far the easiest to tolerate. THORNE Iron Bisglycinate provides a well-absorbed form of iron that doesn't leave me dealing with the stomach discomfort or constipation I've experienced with other brands. The capsules are easy to take, and I've noticed a positive difference in my energy levels and overall well-being. The quality is exactly what I've come to expect from Thorne, and I appreciate that it's NSF Certified for Sport and gluten-free. If you're looking for a reliable iron supplement that's gentle on your digestive system, this is an excellent choice!
K**A
Quality of product
Good product, good price !
R**H
Finally an Iron Supplement I Can Tolerate
I’ve been really happy with this iron supplement so far. It’s easy to take and hasn’t upset my stomach like other iron supplements I’ve tried, which was a big concern for me. I’ve been using it consistently and have noticed an improvement in my energy levels. It feels like a good quality product, and I like that it’s gentle but still effective. The only downside is the price is a little higher than some other options, but for me it’s been worth it.
I**N
Gentle on My Sensitive Stomach
I’ve tried so many supplements over the years, and most of them have upset my stomach. This one is a game-changer! I started taking it a few weeks ago, and it’s been nothing but smooth sailing. No discomfort, no bloating, and no queasiness – even when I take it on an empty stomach.
Trustpilot
3 weeks ago
1 month ago