I try to take enough vitamin D(Need to take blood test to test for what is appropriate level for yourself)-much higher than RDA recommended, not enough to depend on the sun, take a supplement, for strong bones and prevention of cancers. Usana supplements have higher levels of vitamin D added to their supplements and good multiple vitamin set with vitamin D as well. I also make sure I take enough omega 3 oils and calcium. In total, my vitamin D is about 3100 IU daily. Research shows a daily oral intake between 1,000 to 4,000 IU of vitamin D (depending upon your baseline vitamin D blood levels) is ideal. Vitamin D toxicity does not occur until blood levels reach 150 ng/ml or more; which would generally take an oral dose of 50,000 IU per day! Vitamin D status can be assessed by a blood test. Be careful about the lab’s reference ranges, because sometimes they will compare you to the "normal population," which is DEFICIENT...you don't want to be “normal” (or deficient in vitamin D). Optimal levels of vitamin D3 (25-hdroxyvitamin D) should be in the range of 30 – 50 ng/ml (or 75 – 125 nmol/L). What is fascinating, and critical for you to know is that there are well over 89 medical studies showing that high vitamin D blood levels (which can only be obtained by supplementing with more than 400 IU/day) reduce nearly all cancers, including cancers of the colon, rectum, breast, and prostate (some as much as 50%). Furthermore, vitamin D has been shown to suppress inflammation by reducing cytokines (inflammatory modulating molecules). Thus, taking at least 1,000 of vitamin D or more per day helps protect against inflammatory conditions such as rheumatoid arthritis, chronic muscle pain (fibromyalgia), congestive heart failure, diabetes, stroke, and mutliple sclerosis. God bless you all.
Posted by semecloud on Aug 19, 2015 | Verified Purchase
Had to take vit d3 on doctor order so I purchase these and they are easy to take because of how small they are. Can't really taste them in my mouth and easy to swallow if you cant handle the bigger tablets.
Posted by iHerb Customer on Apr 23, 2015 | Verified Purchase
excellent......when ready,will order again
Posted by iHerb Customer on Jun 01, 2010 | Verified Purchase
Solgar is a good brand. The price of this supplement is oke. The tablets are nice bright yellow so it's obvious these are de D3 ones, they stand out between other supplements if you're taking several. I think the are oke.
Posted by iHerb Customer on Dec 21, 2017 | Verified Purchase
My parents heard Vit D3 is really good and urged me to help them purchase for their consumption. Solgar has been a trusted brand when it comes to vitamins and supplements, and I like that it is in tablet form and not in gel form. Hopefully this will be helpful for my parents' health. You may like to use WA N 7750 (no spacing) for your solgar purchase.
Posted by iHerb Customer on Aug 08, 2013 | Verified Purchase
don't need in summer time. But in winter time it will be good for our health!
Posted by iHerb Customer on Oct 29, 2009 | Verified Purchase
Posted by iHerb Customer on Mar 05, 2012 | Verified Purchase
Cannot see that it has done any good for me.
Posted by iHerb Customer on Nov 20, 2008 | Verified Purchase
in use and great, also the price / quality rate
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