Lysine is an essential amino acid that the body cannot produce on its own and must be obtained through diet. Lysine helps with calcium absorption, which is important for bone health and muscle strength. Here are seven foods rich in lysine: 1. Meat and poultry: Beef, pork, and poultry are all good sources of lysine. Choosing lean cuts can promote heart health. 2. Cheese: Almost all cheeses are high in protein and calcium, especially parmesan. 3. Fish: Cod and sardines are particularly high in lysine and are good sources of healthy protein. 4. Eggs: Eggs are an inexpensive source of protein, and most adults can safely eat one egg per day. 5. Soybeans: Tofu, soy protein, and soybean flour are excellent sources of lysine, suitable for vegetarians. 6. Legumes: Beans, peas, lentils, and peanuts are also strong sources of protein, perfect for plant-based diets. By maintaining a balanced diet and consuming enough lysine, you can support bone health and improve muscle strength.