Page 1 - Reviews - Source Naturals, Vitamin K, 100 Tablets - iHerb
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Customer Ratings & Reviews

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4.7
Based on 1,167 ratings
916
165
64
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HealthSeeker
Posted on Jan 27, 2021
Thailand
18
0
0
23
Effective and well priced.
Verified purchase
The previous brands of Vitamin K1 that I bought were not of a good enough quality to provide the boost to blood coagulation that I needed after dengue fever. This brand provides a dosage that is 5 times that of the other brands in one tablet and does the job.
iHerb customer
Silver
Posted on May 1, 2021
Thailand
124
0
12
38
Verified purchase
i love this product and it is great for your prostate and blood.
iHerbCustomer
Silver
Posted on Jun 8, 2025
United Arab Emirates
115
10
283
181
Verified purchase
I recently started using Source Naturals Vitamin K, 500 mcg, and I’m quite satisfied with my experience. The capsules are easy to swallow and don’t have any aftertaste, which is a plus for me. I appreciate that this supplement supports bone health and cardiovascular function, and I’ve noticed a positive difference in my energy levels since incorporating it into my routine. The dosage is just right, and I feel confident knowing I’m getting a quality product without unnecessary additives. The price is also very reasonable, making it accessible for regular use. Overall, I highly recommend Source Naturals Vitamin K to anyone looking to support their health in a natural and effective way!
spaflam
Posted on Jan 28, 2026
United States
62
0
7
8
Need K to go with my D(s)
Verified purchase
If you need a reasonably priced K supplement this is as good as any and it's a small tablet size that is easy to swallow. I usually prefer a Raw K complex but this is just fine - and fit s a tight budget. No taste. Decent Quality.
icarie11
Silver
Posted on Jul 9, 2025
Qatar
134
1
0
5
Effective
Verified purchase
Convenient all-in-one supplement Supports immune health, energy, and overall wellness Great for people with dietary restrictions
Min
Posted on Apr 13, 2026
Vietnam
92
52
0
202
Source Naturals, Vitamin K, 500 mcg (200 Tablets)
Verified purchase
Source Naturals, Vitamin K, 500 mcg (200 Tablets): Reliable quality Vitamin K at a great price. The composition includes 500 mcg of K1 for bone health benefits. Use one tablet as a daily dosage. The tablets are small with a neutral taste and smell. Highly recommended to include in your diet for total body support at any age. The ingredients are nice. The size is ok.
iHerb customer
Posted on Jan 16, 2026
Switzerland
66
0
0
1
Verified purchase
I’m very satisfied with my order from iHerb. The product quality is excellent, exactly as described, and the packaging was secure and professional. Delivery was fast and reliable, everything arrived in perfect condition. I truly appreciate the wide selection of high-quality products and the smooth shopping experience. I will definitely continue ordering from iHerb and highly recommend it.
iHerb customer
Posted on Nov 2, 2025
Germany
15
0
0
0
Good quality
Verified purchase
I've only been using this supplement for a short time, but I can already say that Source Naturals is excellent quality. The tablets are small, tasteless, and easy to swallow. The dosage is convenient, not too high, and can be taken daily. The jar is compact, and the lid closes tightly :) So i can recommend
iHerb customer
Posted on Oct 1, 2025
United Kingdom (UK)
8
0
0
1
Verified purchase
This Vitamin K supplement was recommended by my doctor to support my eye health, and I've been really happy with it so far. The tablets are small and easy to take, and the 500 mcg dose feels just right. Great value with 200 tablets in one bottle. I’ll definitely keep using it.
iHerb customer
Posted on Jul 16, 2025
Israel
18
0
0
1
Verified purchase
Here’s a sample iHerb review for Vitamin K (especially useful if it’s K2 or combined with D3): ⸻ ⭐⭐⭐⭐⭐ (5/5) “Great for Bones and Heart!” This Vitamin K supplement is high quality and very effective. I take it with Vitamin D3 to help calcium go to the bones, not the arteries. Since using it, my joints feel better and my blood pressure is more stable. The capsules are small and easy to swallow. No side effects at all — I trust this brand and will definitely reorder. ⸻ If you’re using a specific type (like MK-7 or MK-4), or a combo product (like D3 + K2), I can tailor the review for that. Just let me know!