Which of the following foods is high in methionine?

Methionine is an essential amino acid that plays a critical role in various biological processes, including protein synthesis, the metabolism of fats, and the detoxification of harmful substances in the body. Among the listed foods, milk stands out as being particularly high in methionine.

Dairy products like milk are rich sources of complete proteins, which means they contain all the essential amino acids necessary for human health, including methionine. The amino acid profile of milk includes a good balance of both casein and whey proteins, with methionine making up a significant portion of these proteins.

In contrast, while apples, spinach, and rice do contain some level of amino acids, they do not offer as high concentrations of methionine compared to milk. Apples and spinach, being plant foods, are typically lower in amino acid content, and while rice does contain proteins, its amino acid profile is notably lower in methionine compared to dairy products. Thus, milk is clearly identified as the food source that provides a high level of methionine.