What dietary source is particularly high in niacin?

Pork is particularly high in niacin, which is also known as vitamin B3. This vitamin plays an essential role in energy metabolism and is important for the synthesis of various substrates in the body, including fats and carbohydrates. Pork, especially cuts that have not been processed or overly refined, contain substantial amounts of niacin, making it an excellent dietary source.

In contrast, while whole grains do provide some niacin, they typically contain lower amounts than pork, especially when the grains are refined, which removes many nutrients. Oily fish are beneficial for their omega-3 fatty acids but do not rank particularly high in niacin. Fruits, although vital for a balanced diet and containing various vitamins and minerals, generally have very little niacin compared to meat sources like pork. This makes pork the standout option when considering niacin content specifically, highlighting its significance in dietary sources of this important vitamin.