Most of the absorption of nutrients occurs in the small intestine. The small intestine is divided into three parts: the duodenum, jejunum, and ileum. While some absorption begins in the stomach, the majority takes place in the small intestine, particularly in the jejunum and ileum. The inner lining of the small intestine has specialized structures called villi and microvilli, which increase the surface area for absorption, allowing for the efficient uptake of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals into the bloodstream.
where does most of the absorption of nutrients occur
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