Best foods to support collagen productionFishProtein-rich foods are going to be your best option for boosting collagen, said Mroz-Planells. Citrus fruitsMany foods that are not naturally high in collagen can still support collagen production. One study even found that potato peel extract can stimulate collagen production and can be an effective anti-aging agent in skincare. While they do not naturally contain collagen themselves, they are rich in two amino acids, proline and glycine, that are essential for collagen production. GarlicWhile not naturally rich in collagen, garlic is rich in sulfur, which studies have shown to play a role in collagen production.