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Combination of vitamin D and omega-3 may help maintain estradiol hormones

Estradiol, an estrogen hormone, is essential to reproductive, bone, heart, and kidney health. In this eight-week study, 86 premenopausal women, aged 33 to 42 and deficient in vitamin D, took 50,000 IU of vitamin D per week; 1,300 mg of fish-oil omega-3 per day; these two nutrients together; or no supplements.

Women taking vitamin D alone saw a decline in estradiol, while those taking omega-3 alone saw vitamin D levels decline.

But women who took vitamin D together with omega-3 maintained their estradiol and vitamin D levels, suggesting potential bone, heart, and kidney health benefits in normal, young premenopausal women deficient in vitamin D.

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