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Posted by iHerb Customer on December 20 2015 | Verified Purchase

I used to take d3: 300iu+vitamin k2 45ug and was feeling good at the late summer until mid autumn. Then i suddenly felt depressed,out of energy and had a hard time losing weight. A few weeks into november i started to get sleep apnea, so I tried without the vitamin d3 cuz i thought i got "too much". It was even worse. Now i had insomnia instead. I read all about this you need 60-80ng/ml for a normal sleep pattern. So i upped the dose right away to 9000iU and could feel it right away the first day! I slept through the whole night, and i just knew this was it. I usually had a big belly during autumn and winter time, always wondered why. Even though i exercise 4times a week intensively = bodybuilding. But always had that protruding gut. I thought i had some problems with the thyroid but it went away right after i upped my dose to 10000IU. The big problem is that if you take k2 like i did at first. K2 can be beneficial but you need sufficient amounts of d3 levels in your body. If not, k2 needs Calcium and Vitamin D to work properly. It's antagonist will be affected as well. I got headaches= signs of magnesium deficiency. So i recommend that you do not supplement with k2 if you're vitamin d and/or magnesium deficient. When you're further in your healing process you can supplement with k2 also if you'd like. But you can always get that vitamin k easier than d3 in the diet, also your gut produces abit of k2 from vitamin k foods. Got these recommendations from Vitamin D Council. Great site! Vitamin d3 deficient? Winter time: 5000-7000ie/daily. Winter time and levels below 30 ng/ml? = Supply with 10 000-15 000 IU/daily for 2-3weeks. Then check your vitamin d levels. Summer time= Sun exposure + 1-5000IE for 2-3weeks. Then check your vitamin d levels.

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Trying to quickly increase blood levels

Posted by alloriginal on January 23 2016 | Verified Purchase

I am using the 10,000 IU potency to raise my vitamin D levels rapidly. Recent research seems to indicate that vitamin D is far more important than previously thought. For preventing cancer, obesity, heart disease, osteoporosis, it can't be beat. I take one per day, after a meal, with a fish oil capsule for enhanced absorption. After 30 days I intend to cut down to every oither day. For more useful reviews please click my user name (alloriginal). Thanks!

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Healthy Origins, Vitamin D3, 10,000 IU, 30 Softgels

Posted by ReputableReviewer on August 12 2014 | Verified Purchase

THE MUST for those who live with little natural sunshine like me :( It has very much IU, but I am not afraid, since I have vitamin D deficits, I just know it. I also use it for my teeth and gum health. Just cut the capsule and rub on teeth, gums. I even like its taste.

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Quality product

Posted by iHerb Customer on June 2 2015 | Verified Purchase

Not too strong if you're suffering from deficiency. Doctor prescribed me one 50,000IU per week of D2. D3 is a superior form of Vitamin D, so I switched and take one 10,000IU of D3 daily instead of the synthetic 50,000 D2 once a week. Once my D level is back to normal, I'll switch o 5,000IU.

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Helps to tiredness

Posted by iHerb Customer on April 12 2015 | Verified Purchase

I´m not so tired anymore! I could feel the difference immediately.

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VitD3 amazing product

Posted by iHerb Customer on October 17 2014 | Verified Purchase

my fave by far, cleaner skin, more energy, sleeping better, no mid afternoon slump. its fantastic. one that i will keep taking every day religiously

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Posted by iHerb Customer on September 5 2014 | Verified Purchase

like it

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Lo aplico en la cara

Posted by iHerb Customer on November 7 2014 | Verified Purchase

Es perfecto para usar directamente en el rostro.

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Strong vitamin D

Posted by iHerb Customer on October 21 2014 | Verified Purchase

Is it even too strong...?

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Great for beating Winter depression

Posted by iHerb Customer on October 24 2017 | Verified Purchase

I live in an area that has very little sunlight during winter and I suffer with winter depression. This product really helped to keep my D3 levels up this year so I didn't feel depressed. Would use again.

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