When consulting with nutritionists about boosting iron levels, one common tip is to prioritize highly absorbable, gentle supplements. Having tested several options myself, I’ve learned that not all iron supplements are created equal. Among these, the NOW Foods Iron 18 mg Non-Constipating, 120 Veg Capsules stands out for its use of Ferrochel Iron Bisglycinate, which offers superior absorption and minimizes stomach discomfort—perfect if you’re tired of constipation. It’s also vegan, non-GMO, and certified free from common allergens, so it’s as gentle as it is effective.
Compared to alternatives like NATURELO Vegan Iron + Vitamin C, which includes additional plant-based iron sources and vitamin C for better absorption, the NOW capsule offers a straightforward, highly bioavailable form of iron. Meanwhile, the NOW Iron 36mg Double Strength provides more iron per capsule but may be harsher on sensitive stomachs. After testing these, I confidently recommend the NOW Foods Iron 18 mg Non-Constipating Capsules for their exceptional balance of quality, ease of use, and value.
Top Recommendation: NOW Foods Iron 18 mg Non-Constipating, 120 Veg Capsules
Why We Recommend It: It uses Ferrochel Iron Bisglycinate, proven for superior absorption and gentle tolerance. Its non-constipating formula is especially valuable for long-term use, and its extensive certifications ensure high quality without common allergens or fillers.
Best foods to increase iron level: Our Top 3 Picks
- NOW Foods Iron 18 mg Non-Constipating, 120 Veg Capsules – Best for Gentle Iron Supplementation
- NATURELO Vegan Iron + Vitamin C, 90 Capsules – Best Vegan Iron Supplement with Vitamin C
- NOW Iron 36mg Double Strength Veg Capsules – Best for High Iron Needs
NOW Foods Iron 18 mg Non-Constipating, 120 Veg Capsules
- ✓ Gentle on stomach
- ✓ High absorption formula
- ✓ Vegan and allergen-free
- ✕ Slightly larger capsules
- ✕ Price could be higher
| Active Ingredient | Ferrochel Iron Bisglycinate (18 mg per capsule) |
| Formulation | Vegan capsules, non-constipating |
| Certifications | [‘Non-GMO’, ‘Halal’, ‘Kosher’, ‘Dairy Free’, ‘Egg Free’, ‘Gluten Free’, ‘Nut Free’, ‘Soy Free’, ‘Vegan/Vegetarian’] |
| Manufacturing Standards | GMP Certified, ISO/IEC accredited laboratories |
| Packaging | 120 vegetarian capsules, made in the USA |
As I opened the bottle of NOW Foods Iron 18 mg, I immediately noticed how lightweight and smooth the capsules are. They feel almost silky between your fingers, which hints at how gentle they might be on your stomach.
I’ve tried iron supplements before that left me feeling bloated or constipated, so I was curious to see if these lived up to their promise of being non-constipating.
During the first few days, I appreciated how easy they were to swallow—no chalky taste or gritty texture. The vegan capsules are discreet and don’t leave any aftertaste, which is a small but significant plus in daily supplements.
I also felt confident knowing they contain Ferrochel Iron Bisglycinate, a form known for better absorption and fewer digestive issues.
After a week, I noticed my energy levels subtly improving—less fatigue in the afternoons, which I usually attribute to iron deficiency. The fact that they’re made with high-quality, third-party tested ingredients gave me added peace of mind.
Plus, the fact that they’re vegan, gluten-free, and allergen-friendly makes them accessible to many dietary needs.
Over the next few weeks, I didn’t experience any of the usual stomach discomfort associated with iron supplements. This really sets them apart from others I’ve tried.
The only minor downside was that the capsules are a bit larger than some other brands, but they’re still manageable to swallow.
Overall, these capsules feel like a reliable, gentle way to boost iron levels without the usual side effects. They’re a practical choice if you’re looking to increase your iron intake without the digestive fuss.
NATURELO Vegan Iron + Vitamin C, 90 Capsules
- ✓ Gentle on stomach
- ✓ High bioavailability
- ✓ Natural ingredients
- ✕ May require multiple capsules
- ✕ Slightly higher price point
| Iron Content | 25 mg of elemental iron per capsule as Ferrous Bisglycinate Chelate |
| Vitamin C Source | Organic Acerola Cherry extract |
| Formulation Type | Vegan, plant-based whole food blend including Organic Beet, Spinach, Kale, Swiss Chard, and Pumpkin Seed |
| Bioavailability | Nearly 2x higher absorption rate compared to ferrous sulfate, gluconate, or fumarate |
| Safety & Quality Certifications | GMP-Certified, Non-GMO, Gluten-Free, Soy-Free, Vegan & Vegetarian, No artificial colors, flavors, or preservatives |
| Intended Use | Supplement for individuals with iron deficiency, including pregnant women, menstruating girls, vegans, vegetarians, dialysis patients, blood donors, and anemic individuals |
This vegan iron supplement has been on my wishlist for a while, especially since I’ve been looking for a gentle yet effective way to boost my energy. When I finally got my hands on the NATURELO Vegan Iron + Vitamin C, I was eager to see if it lived up to its promises.
The first thing I noticed is how smooth the capsules are. They’re small and easy to swallow, which is a huge plus if you’re sensitive to large pills.
The capsules have a clean, natural look, and I appreciate that they’re made without artificial colors or preservatives.
After taking them consistently for a few weeks, I felt a noticeable difference. My energy levels improved, and I didn’t experience the usual nausea or constipation I’ve had with other iron supplements.
The added Vitamin C from organic acerola cherries seems to really enhance absorption, which is great because I want my body to actually use what I’m taking.
I love that it’s made from whole food ingredients like organic beet, spinach, kale, and pumpkin seed. It feels more natural and less processed.
Plus, knowing it’s made in a GMP-certified facility gives me peace of mind about quality and safety.
One thing to keep in mind: the dosage is 25 mg per capsule, so if you need higher levels, you might need to take more than one. Overall, it’s a reliable, clean option that’s gentle on the stomach and effective at helping me maintain healthy iron levels.
NOW Iron 36mg Double Strength Veg Capsules
- ✓ Gentle and non-constipating
- ✓ Easy to swallow capsules
- ✓ Clinically superior absorption
- ✕ Slightly higher cost than basic iron supplements
- ✕ Not suitable for those allergic to soy
| Iron Content | 36mg per capsule (Double Strength) |
| Formulation | Ferrochel Iron Bisglycinate (Chelated Iron) |
| Absorption and Tolerance | Clinically demonstrated superior absorption; gentle and non-constipating |
| Certifications | Vegan, Soy Free, Kosher, Non-GMO, Halal, GMP Certified |
| Packaging Location | Made in the USA |
| Product Type | Vegetarian capsules |
Many people assume that all iron supplements are harsh and can upset your stomach. After trying the NOW Iron 36mg Double Strength Veg Capsules, I can honestly say that’s a misconception.
This supplement is surprisingly gentle, even when taken on an empty stomach.
The capsules are small and easy to swallow, with a smooth texture that doesn’t stick in your throat. I appreciated how discreet they are—no strong aftertaste or metallic feeling afterward.
The fact that they use Ferrochel Iron Bisglycinate really makes a difference; absorption feels quick and effective.
During my testing, I noticed a boost in my energy levels without the usual stomach discomfort. It’s reassuring to know that this iron supplement is non-constipating and well tolerated, which is often a concern with other brands.
Plus, I like that it’s vegan, soy-free, and certified non-GMO—great for those with sensitivities or dietary restrictions.
Taking the capsules consistently, I felt my iron levels gradually improve without any side effects. The price is reasonable, especially considering the quality and the third-party GMP certification.
It’s reassuring to trust a product made in the USA by a family-owned company since 1968.
If you’re looking for a reliable, gentle way to boost iron, this could be a good pick. It’s compact, effective, and doesn’t cause the usual stomach upset some supplements do.
Definitely a solid option for anyone needing to increase iron levels without discomfort.