There are a number of foods that contain high amounts of collagen, including fish and poultry skins, soft shell turtles and pigs' feet. However, if you don't find these foods appetizing, there are a number of other foods that stimulate the body to produce more collagen. Collagen is an important protein that helps keep skin smooth, strong and elastic.
Dark green vegetables like spinach and kale are thought to stimulate collagen production, as they contain a powerful antioxidant called lutein in addition to high levels of vitamin C, which also has the same effect. Therefore, oranges and other citrus fruits are also great for producing more collagen.
Another powerful group of antioxidants that help to produce collagen are lycopenes, which are found in high levels in red, yellow, orange and purple fruits and in vegetables, such as tomatoes, beets, carrots, sweet potatoes, squash and pumpkins.
Foods rich in omega fatty acids also help enable the body to better produce collagen. Some of these foods include salmon, tuna, avocado, nuts and seeds. Finally, the chemical genistein is another key component in collagen production, and it is found in high quantities in soy and soy-based products, such as tofu and soy milk.