Proline
A non-essential amino acid central to collagen.
What is Proline?
Proline is a non-essential amino acid that, with glycine, forms the backbone of collagen. Its unique ring structure gives collagen its strength and stability, making proline important for skin, joints, tendons, blood-vessel walls and wound healing.
Health benefits of Proline
- A core building block of collagen
- Supports skin elasticity and joint health
- Important for wound healing and tissue repair
- Helps maintain the strength of blood-vessel walls
Top food sources of Proline
See full rankingGelatin and bone broth, meat, dairy, eggs and whole grains. Values shown per 100 g.
Gelatins, dry powder, unsweetened
12,295 mg
Gelatin desserts, dry mix, reduced calorie, with aspartame, added phosphorus, potassium, sodium, vitamin C
8,890 mg
Gelatin desserts, dry mix, reduced calorie, with aspartame, no added sodium
8,890 mg
Snacks, pork skins, plain
7,262 mg
Snacks, pork skins, barbecue-flavor
6,769 mg
Soy protein isolate, potassium type, crude protein basis
4,960 mg
Soy protein isolate
4,960 mg
Soy protein isolate, potassium type
4,960 mg
Cheese, parmesan, shredded
4,860 mg
Cheese, parmesan, grated
4,622 mg
Soy protein isolate, PROTEIN TECHNOLOGIES INTERNATIONAL, SUPRO
4,500 mg
Soy protein isolate, PROTEIN TECHNOLOGIES INTERNATIONAL, ProPlus
4,400 mg
How much Proline do you need?
There is no Daily Value or specific target. The body synthesizes proline, and protein and collagen foods supply it.
Proline deficiency
Deficiency is not a practical concern because the body makes proline; collagen-rich foods can support demand during healing.
Nutrition data per 100 g from the USDA & FooDB databases. Daily Values follow the FDA 2016+ labeling standard for a 2,000-calorie diet. This guide is for general information and is not medical advice.
Frequently asked questions
What does Proline do?
Proline is a non-essential amino acid that, with glycine, forms the backbone of collagen. Its unique ring structure gives collagen its strength and stability, making proline important for skin, joints, tendons, blood-vessel walls and wound healing.
How much Proline do I need per day?
There is no Daily Value or specific target. The body synthesizes proline, and protein and collagen foods supply it.
Which foods are highest in Proline?
Per 100 g, some of the richest sources are Gelatins, dry powder, unsweetened, Gelatin desserts, dry mix, reduced calorie, with aspartame, added phosphorus, potassium, sodium, vitamin C, Gelatin desserts, dry mix, reduced calorie, with aspartame, no added sodium, Snacks, pork skins, plain, Snacks, pork skins, barbecue-flavor.
What happens if I don't get enough Proline?
Deficiency is not a practical concern because the body makes proline; collagen-rich foods can support demand during healing.