cholesterol hypothesis, harm your heart, vitamin D protect your heart

The higher your vitamin D levels are, the less likely you are to die from cardiovascular disease. But will taking vitamin D protect your heart?

Does Vitamin D Protect Your Heart?

A meta-analysis of 34 studies involving over 180,000 participants found that people with higher levels of 25-hydroxyvitamin D were less likely to succumb to a heart attack or stroke. This is the form of vitamin D that is measured in blood tests to determine how much of the vitamin is circulating in the body.

These were observational studies rather than randomized controlled trials, however. As a result, we don’t know how people with better vitamin D levels got their vitamin D-from sun exposure or from supplements.

It is unlikely to have been from diet. The richest food sources of vitamin D are cod liver oil, some fatty fish such as swordfish or salmon and fortified foods such as orange juice, milk or yogurt.

Studies of Supplements Have Been Disappointing:

The authors point out that experiments with vitamin D therapy to prevent bone loss have not shown noticeable cardiovascular benefits. Given this apparent contradiction, the investigators call for well-designed randomized vitamin D clinical trials to determine if vitamin D supplements can protect your heart and if so, what the best dose might be.

Zhang et al, American Journal of Clinical Nutrition, April, 2017

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  1. Kassandra

    I was severely deficient in vitamin D when my D levels were first tested about 6 years ago. Based on my results, my doctor recommended that I take 10,000 iu’s of vitamin D every day. My D levels have been tested every year since then, and my levels are between 60-75, in the upper normal range. Since my D levels have been healthier, my osteopenia has actually improved (I refused to continue taking Fosamax as soon as my jaw started locking—-and it stopped locking several months after I stopped the Foxamax). I also tried statins to lower my cholesterol, but stopped because of intolerable side effects. Once I increased my healthy fat consumption and decreased my carb (especially sugars) consumption, my cholesterol has remained below 200.

  2. Carol

    My question is about your suggestions for absorbing more phytonutrients from green tea. You suggest putting teabag in the water and then microwaving at half power.

    My question is, should the initial water be hot, warm or cold when you pour it in, before it is microwaved?

    Thank you.

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