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The challenge hypothesis
Vitamin D
A group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate.
Marine Mammals
A diverse group of roughly 120 species of mammals that are primarily ocean-dwelling or depend significantly on aquatic ecosystems for their survival.
Calcium Homeostasis
The regulation of calcium levels in the blood within a narrow range, crucial for various physiological processes including bone formation, blood coagulation, and muscle contraction.
Vitamin D
Vitamin D is a fat-soluble vitamin essential for healthy bones and immune function, obtained from sunlight exposure and certain foods.
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