The nutrient that can be considered both a vitamin and a hormone is vitamin

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Vitamin D is commonly known as the "sunshine vitamin" because our bodies can make it when our skin is exposed to sunlight. However, it also acts as a hormone in the body, influencing the expression of multiple genes and playing a critical role in calcium and phosphorus metabolism. Due to these hormone-like functions, some researchers have even suggested that vitamin D should be classified as a hormone rather than a vitamin.

The Nutrient That Can Be Considered Both a Vitamin and a Hormone