Best Iron Supplements of 2024
Thorne Iron Bisglycinate
Best general iron supplement
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Nature Made Iron
Best high-dose iron supplement
$19 at Nature Made 
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CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise.
There are different “types” of iron as the active ingredient or source of elemental iron.
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Your supplement will be of little use to you if it’s too expensive. Consider the amount of capsules or daily doses of iron you’re getting in a bottle in addition to comparing its ingredients.
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Thorne is gaining momentum in the vitamin and supplement world due to its variety of products. Thorne’s iron supplement contains ferrous bisglycinate (Ferrochel chelated iron), which is marketed as causing less digestive upset than other iron types. At 25 mg, it’s a “good middle-of-the-road” option for people looking to supplement iron. It’s also NSF Certified for Sport, making it a good choice for athletes as well as anyone who needs more iron.
This supplement does not include vitamin B12 or other nutrients vegans need, and it doesn’t include vitamin C for absorption like other supplements.
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If your iron levels are so low to qualify as iron-deficient anemia, chances are good your doctor will fill you a prescription for iron supplements that are strong enough to get your levels up. In other cases, or if you don’t have insurance, there are options on the market that are higher strength than average.
Nature Made is not only one of the most affordable iron supplements out there, but it’s also one of the strongest with 65 mg iron supplements (a conversion from 325 ferrous sulfates). Nature Made is a solid, approachable brand for all things supplements, as the company’s products are US Pharmacopeia verified. This means you know that the ingredients match what’s on the label.
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Vegans often need B vitamins, particularly B12, so a vegan iron supplement that contains other essential nutrients is a logical choice.
The Garden of Life Vitamin Code Raw Iron supplement is vegan, contains 22 mg of iron from brown rice chelate and a big dose of vitamin B12 (20,833% of the daily value) and some vitamin C for absorption. In general, Garden of Life is a highly rated supplement brand. However, not everyone may need vitamin B12 or be low in it, so it’s a good idea to check in with your doctor before choosing this supplement (or any).
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Not everyone likes swallowing capsules; some may prefer a gummy vitamin that both tastes okay and goes easier down the hatch. As a bonus, this gummy from Nature Made also contains vitamin C for easier absorption and has iron in the form of ferrous fumarate.
At 18 mg of iron per dose – which is two gummies per serving – this supplement is on the lower-dose end and people with a deficiency may be better suited by another supplement.
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