Onions do more than enhance flavor. They contain sulfur compounds such as alliin, which are involved in the formation of collagen. Sulfur is a key element in the amino acids that make up collagen proteins.
Studies examining sulfur-rich foods suggest they may help maintain healthy cartilage, which is essential for protecting joints like the knees. Research published in nutrition-focused journals has linked diets higher in these compounds with improved joint function.
Adding onions to your meals can be simple. A medium onion per day can fit easily into soups, salads, or cooked dishes without drastically changing your routine.
Simple Ways to Eat More Onions
Making onions a daily habit doesn’t need to be complicated. You can sauté sliced onions in olive oil and add them to eggs or grains, simmer them into broths for soups, or finely chop them into fresh salads. Raw preparations help preserve sulfur compounds, while cooked versions remain versatile and comforting.