Should you take vitamin D? Here's the science
Briefly

Experts caution against overdosing on vitamin D supplements or completely shunning them. Optimal supplementation corrects deficiencies, while excess doses may offer no benefits. Determining who needs supplementation, how much, and its specific benefits remains challenging.
Historically, vitamin D importance was revealed during the Industrial Revolution, combating rickets caused by lack of sunlight exposure. Sunlight triggers vitamin D production, crucial for bone health.
Read at english.elpais.com
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