Page 1 - Reviews - NOW Foods, Selenium, 100 mcg, 250 Tablets - iHerb
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Customer Ratings & Reviews

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4.8
Based on 61,613 ratings
54,699
5,165
1,327
265
157
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What customers say
Customers are highly satisfied with the NOW Foods Selenium supplement, praising its quality and effectiveness. Many users highlight its positive impact on thyroid health, immune support, and overall well-being. The 100 mcg dosage per tablet is considered ideal, and the small, easy-to-swallow tablets are appreciated for their convenience. Despite a slight smell from the bottle, most find it manageable given the benefits. The product's yeast-free, non-GMO formulation suitable for vegetarians/vegans is also noted as a significant advantage. Overall, customers report improved health and plan to repurchase.
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Truthofjuly
Posted on Mar 30, 2026
United States
27
8
0
9
Essential!
Verified purchase
This was more of a quality health support purchase for thyroid and overall balance with the ingredients. It’s easy to take size, and I like that the minerals supports things behind the scenes that you don’t always “feel” immediately. I added it to round out my routine and I’m glad I did. packaging great and benefits the body even better. Helps with our composition, deficiency that occurs naturally, but we are able to purchase this supplement by taking it frequently. no side effects, taste or symptoms.
db958521-1659-4ecc-bca9-feacf2943404
Hd1903dm
Posted on Apr 2, 2026
United States
69
0
0
8
Good price and convenient
Verified purchase
I was using Brazilian nuts but this is a little more convenient and practical considering the price too. Can’t complain with this company most of the time I have seen.
iHerbCustomer
Posted on Mar 11, 2026
Latvia
34
0
0
8
Verified purchase
This elemental selenium is one of essential minerals, great quality, perfect size package and small tablet for easy swallowing , tablets have no taste. I have been taking this supplement once a day for a couple of years at least to benefit my hyroid health (i do not have thyroid issues).
iHerbCustomer
Silver
Posted on Mar 4, 2026
Ukraine
120
137
8
162
Now Foods Selenium — convenient and high-quality
Verified purchase
Selenium 100 mcg from Now Foods is high-quality and easy to take. The tablets are small and easy to swallow, and the bottle lasts a long time. A great option for supporting immunity and overall well-being.
58fad2b8-526b-4ca9-8f92-4aab5a7302dc
NelEdm
Silver
Posted on Jan 31, 2026
Canada
108
24
2
111
Love it
Verified purchase
I have been supplementing with selenium (mostly selenomethionine) off and on, and I have found the prices to be a bit much in some cases and the quality in others not to be great at all. I have used NOW supplements in the past and have great success with them before, so I was surprised to see it was selenomethionine that they use in their product, and they are 200 mcg at that! Knowing NOW is a quality-oriented company, I ordered a bottle, and they seem to be working,g and the price is just spot on!
iHerb customer
Posted on Jun 21, 2026
Azerbaijan
8
6
0
0
selenium
Verified purchase
I ordered this product to support the antioxidant properties of selenium. NOW Foods consistently offers an affordable and reliable option for these types of mineral supplements. The tablets are small, making them very easy to swallow and practical for taking the daily dose. It makes me feel more confident, especially in supporting my immune system. I ordered two boxes because I'm determined to consume this essential mineral regularly. It's a reliable and successful selenium supplement. Quality ingredients
a4db8578-d891-42a9-ac89-7aadd815d6aa
iHerb customer
Posted on Apr 21, 2026
Azerbaijan
69
67
0
2
Super
Verified purchase
Selenium has become an essential part of my daily routine. I’ve noticed real support for my immunity, energy levels, and overall well-being since I started taking it. The formula is clean and well-balanced, with an effective dose that the body actually needs. It also supports antioxidant protection, which makes me feel more protected from daily stress and fatigue. Easy to take, no side effects, and very gentle on the stomach. Simple but powerful supplement for overall health. Highly recommend!
e5a3c9e0-d821-4a9b-8308-2d5cf37e3aab
Valeriia
Posted on Mar 23, 2026
United States
37
0
0
0
Прекрасно!
Verified purchase
Selenium is a vital antioxidant micronutrient needed to protect cells from oxidative stress, strengthen the immune system, support normal thyroid function (hormone synthesis), and maintain the health of the heart, blood vessels, skin, hair, and reproductive system.
Cladiva22
Silver
Posted on Mar 16, 2026
United States
116
0
12
21
High quality
Verified purchase
⭐⭐⭐⭐⭐ Great experience! The Selenium for Now Foods I ordered arrived in perfect condition and was very well packaged. The quality is excellent and exactly what I was hoping for. Shipping was also really quick, which was a nice bonus. I definitely recommend it and would happily order again!
iHerbCustomer
Posted on Feb 24, 2026
Hungary
38
0
0
6
i like it.
Verified purchase
I take iodine. Iodine can cause oxidative stress, and only one element can neutralize it — selenium. 100 mcg is a safe long-term dose. It comes in an economical package, small tablets, and lasts a long time.