
Re:
https://www.webmd.com/diet/collagen-health-benefits
"To produce collagen, your body needs:
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Proline: in egg whites, dairy, cabbage, mushrooms, and asparagus
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Glycine: in pork skin, chicken skin, and gelatin, variety of other protein-rich foods
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Vitamin C: in citrus fruits and bell peppers
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Zinc: in beef, lamb, pork, shellfish, chickpeas, lentils, beans, milk, cheese, various nuts and seeds
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Copper: in organ meats, cocoa powder, cashews, sesame seeds, and lentils"

Tips: Collagen supplements may work but are still being researched and expensive!
Like most supplements, natural sources are often the healthier choice.
See also:
https://www.webmd.com/diet/health-benefits-gelatin
"While early humans often ate the connective tissues, tendons, and other parts of animals that contain collagen, most modern diets are lacking in collagen and gelatin. Due to its high protein content and amino acids, gelatin is often taken as a supplement. Gelatin is a protein that may promote skin, joint, hair, nail, and gut health. It also provides essential amino acids, the building blocks of proteins"

Soup made of well-simmered chicken (pieces with bones)
as well as turkey now come to mind.
Bon Appétit!
(try frequent servings of a Sunday pot).
Rod
