She noticed that the healthiest dolphins had higher levels of the saturated fatty acid C15:0. When the dolphins ate fish rich in C15:0, their insulin, glucose and cholesterol levels decreased. Now, ...

Like omega-3 fatty acids, C15:0 is considered an essential nutrient that the body cannot produce in sufficient amounts, requiring dietary intake or supplementation.

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She noticed that the healthiest dolphins had higher levels of the saturated fatty acid C15:0. When the dolphins ate fish rich in C15:0, their insulin, glucose and cholesterol levels decreased.