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 1,172 ratings
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What customers say
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English (UK)
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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.
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KnowThyHealth
Silver
Posted on Feb 8, 2026
United States
170
0
0
7
Verified Purchase
i think everyone needs vitamin K right now according to tests
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yanafitness
Gold
Posted on Aug 5, 2025
Ukraine
604
0
0
72
Verified Purchase
Compact tablets with excellent composition - vitamin K is important for bone and cardiovascular health. This option is suitable for a long course, especially in combination with D3. Tasteless, easy to swallow, convenient to dose.
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LiudmilaSilkina
Gold
Posted on May 14, 2026
Ukraine
1,559
929
748
10,220
Verified Purchase
Vitamin K promotes wound healing and reduces bleeding gums. It improves vascular health and increases the elasticity and strength of vascular walls. This supplement is of high quality.
Auto-translated from Russian
iHerbCustomer
Silver
Posted on Feb 10, 2026
Jordan
232
0
0
7
Source Naturals
Verified Purchase
Vitamin K has numerous benefits. Adults should take it as needed, as determined by their doctor, if there is a deficiency. This pack contains 200 tablets of 500 mg each.
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Iren
Silver
Posted on Jan 15, 2026
Germany
200
0
2
23
Verified Purchase
The tablets are small, hard, and easy to swallow. The taste is neutral. Wonderful vitamin K1. Don't confuse it with K2, K4, or MK-7. I take this to thicken my blood.
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iHerbCustomer
Gold
Posted on Oct 31, 2025
Uzbekistan
367
0
0
7
Verified Purchase
Good quality, top-grade ingredients, convenient dosage, bought at a low price with a discount, comfortable size
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ElenaS
Gold
Posted on Aug 30, 2025
Moldova, Republic of
432
69
17
985
Verified Purchase
Vitamin K is intended to provide nutritional support for normal and healthy protein synthesis in bone, plasma and kidney.
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iHerb Customer
Gold
Posted on Jun 24, 2026
Ukraine
712
52
1
21
Verified Purchase
Vitamin K, or phylloquinone, is a fat-soluble vitamin known for its important function in the biological activity of several blood clotting factors. Recent studies have also shown a role for vitamin K in bone health. Vitamin K plays a key role in the synthesis of the bone proteins osteocalcin and matrix protein Gla, which are involved in calcium and bone metabolism.
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Min
Posted on Apr 13, 2026
Vietnam
92
52
0
203
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.
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