Which Foods Contain Proline?

Be sure to munch on lots of bell peppers, strawberries, broccoli, and citrus fruits. #2 Plant-based Proline-Rich Foods: Proline is an important amino acid that plays a role in collagen production. You can pack in a healthy dose of proline by enjoying foods like asparagus, mushrooms, and cabbage.

Where is proline found?

Proline is often found at the end of α helix or in turns or loops. Unlike other amino acids which exist almost exclusively in the trans- form in polypeptides, proline can exist in the cis-configuration in peptides. The cis and trans forms are nearly isoenergetic.

What foods are high in lysine and proline?

Good sources of lysine include foods that are rich in protein, such as:
  • Meat, specifically red meat, pork, and poultry.
  • Cheese, particularly parmesan.
  • Certain fish, such as cod and sardines.
  • Eggs.
  • Soybeans, particularly tofu, isolated soy protein, and defatted soybean flour.
  • Spirulina.
  • Fenugreek seed.
Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.