Overview

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 5 Reviews
8.4
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Vitamin D3 (as cholecalciferol)
125 mcg
625%
Vitamin K activity from:Vitamin K1 (as phytonadione)Vitamin K2 (as menaquinone-4)Vitamin K2 (as trans menaquinone-7)
2,100 mcg1,000 mcg1,000 mcg100 mcg
1,750%
Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)]
1,000 mcg
667%

Most Useful Reviews

9
Improved immunity
Excellent! One of the vital functions of vitamin D is to support the immune system. Frequent colds and bacterial infections are directly linked to vitamin deficiency. Research shows that frequent bronchitis and pneumonia in children also stem from this deficiency. After my husband and I had our vitamin D levels tested, mine was 30 ng/ml and his was 20 ng/ml. After taking vitamin D, my levels rose to 55 ng/ml and his to 50 ng/ml in three months. This is an effective vitamin; we hardly suffer from colds now and even dealt with a mild form of covid-19, likely thanks to vitamin D. It should be consumed with fatty foods for better absorption. We will continue to take it, thank you, iHerb!
Read More
9
Comfortable living
For viral infections, vitamin D with cofactors is the best choice! It supports the immune system, and after struggling with constant herpes for years, everything vanished after starting the supplement. Now, I can live comfortably without the constant threat of viral and bacterial infections that stemmed from this essential vitamin deficiency!
Read More
7.5
Deficiency impacts absorption
A lack of vitamin D often accompanies those with gallbladder, liver, kidney issues, and intestinal microbiota disorders, all affecting vitamin absorption. Vitamin D deficiency is common among people consuming dairy, sodas, and other high-phosphate foods. A key role of vitamin D is supporting the immune system, with frequent SARS and bacterial infections linked directly to its deficiency. Long-term high doses of vitamin D have been used successfully to treat alopecia areata. Despite typical low dosages doctors prescribe, a dose of 5,000 IU is merely preventive for northern regions and brings levels to the lower norm, making this complex a good choice.
Read More

User Reviews

USERS' SCORE
Good
Based on 5 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Improved immunity
Excellent! One of the vital functions of vitamin D is to support the immune system. Frequent colds and bacterial infections are directly linked to vitamin deficiency. Research shows that frequent bronchitis and pneumonia in children also stem from this deficiency. After my husband and I had our vitamin D levels tested, mine was 30 ng/ml and his was 20 ng/ml. After taking vitamin D, my levels rose to 55 ng/ml and his to 50 ng/ml in three months. This is an effective vitamin; we hardly suffer from colds now and even dealt with a mild form of covid-19, likely thanks to vitamin D. It should be consumed with fatty foods for better absorption. We will continue to take it, thank you, iHerb!
Read More
9
Comfortable living
For viral infections, vitamin D with cofactors is the best choice! It supports the immune system, and after struggling with constant herpes for years, everything vanished after starting the supplement. Now, I can live comfortably without the constant threat of viral and bacterial infections that stemmed from this essential vitamin deficiency!
Read More
7.5
Deficiency impacts absorption
A lack of vitamin D often accompanies those with gallbladder, liver, kidney issues, and intestinal microbiota disorders, all affecting vitamin absorption. Vitamin D deficiency is common among people consuming dairy, sodas, and other high-phosphate foods. A key role of vitamin D is supporting the immune system, with frequent SARS and bacterial infections linked directly to its deficiency. Long-term high doses of vitamin D have been used successfully to treat alopecia areata. Despite typical low dosages doctors prescribe, a dose of 5,000 IU is merely preventive for northern regions and brings levels to the lower norm, making this complex a good choice.
Read More
7.5
Less respiratory issues
Excellent! I've been purchasing vitamin D on iHerb for 5 years. Vitamin D, a hormone-like substance affecting nearly the whole body, has proven effective for me: my sleep and mood have improved, and I notice significantly fewer respiratory infections. It's recommended to combine vitamin D with vitamin K2, which aids calcium metabolism and prevents calcification. Having iodine is also beneficial, especially with hypothyroidism, although one should consult an endocrinologist for any concerns. Studies now highlight vitamin D3's importance in preventing and treating coronavirus infection, which adds to its relevance.
Read More
7.5
Comprehensive formula
This is a great complex. I especially needed it after suffering from a viral illness complicated by a bacterial infection. It contains 125 mcg (5000 IU) of vitamin D3, 2100 mcg of vitamin K, and 1000 mcg of iodine. Just one capsule daily is required, preventing the need to take additional medications. This preparation supports the health of bones, the brain, the thyroid gland, and the arteries.
Read More

Frequently Asked Questions

9
Improved immunity
Excellent! One of the vital functions of vitamin D is to support the immune system. Frequent colds and bacterial infections are directly linked to vitamin deficiency. Research shows that frequent bronchitis and pneumonia in children also stem from this deficiency. After my husband and I had our vitamin D levels tested, mine was 30 ng/ml and his was 20 ng/ml. After taking vitamin D, my levels rose to 55 ng/ml and his to 50 ng/ml in three months. This is an effective vitamin; we hardly suffer from colds now and even dealt with a mild form of covid-19, likely thanks to vitamin D. It should be consumed with fatty foods for better absorption. We will continue to take it, thank you, iHerb!
9
Comfortable living
For viral infections, vitamin D with cofactors is the best choice! It supports the immune system, and after struggling with constant herpes for years, everything vanished after starting the supplement. Now, I can live comfortably without the constant threat of viral and bacterial infections that stemmed from this essential vitamin deficiency!
7.5
Less respiratory issues
Excellent! I've been purchasing vitamin D on iHerb for 5 years. Vitamin D, a hormone-like substance affecting nearly the whole body, has proven effective for me: my sleep and mood have improved, and I notice significantly fewer respiratory infections. It's recommended to combine vitamin D with vitamin K2, which aids calcium metabolism and prevents calcification. Having iodine is also beneficial, especially with hypothyroidism, although one should consult an endocrinologist for any concerns. Studies now highlight vitamin D3's importance in preventing and treating coronavirus infection, which adds to its relevance.
7.5
Comprehensive formula
This is a great complex. I especially needed it after suffering from a viral illness complicated by a bacterial infection. It contains 125 mcg (5000 IU) of vitamin D3, 2100 mcg of vitamin K, and 1000 mcg of iodine. Just one capsule daily is required, preventing the need to take additional medications. This preparation supports the health of bones, the brain, the thyroid gland, and the arteries.
7.5
Deficiency impacts absorption
A lack of vitamin D often accompanies those with gallbladder, liver, kidney issues, and intestinal microbiota disorders, all affecting vitamin absorption. Vitamin D deficiency is common among people consuming dairy, sodas, and other high-phosphate foods. A key role of vitamin D is supporting the immune system, with frequent SARS and bacterial infections linked directly to its deficiency. Long-term high doses of vitamin D have been used successfully to treat alopecia areata. Despite typical low dosages doctors prescribe, a dose of 5,000 IU is merely preventive for northern regions and brings levels to the lower norm, making this complex a good choice.
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