An August 2022 paper (1) assessed the impact of nutrition on tendon health and tendinopathy:. A review of 19 previously published papers revealed: “(a lack) of high-quality studies and a wide variety among studies regarding nutrients, tendon location, study population, and reported outcome measures. Individual studies showed promising clinical implications for the use of dietary supplements, particularly those containing collagen-derived peptides. However, giving any definitive dietary recommendations on the prevention and treatment of tendinopathy remains elusive.”
1 Hijlkema A, Roozenboom C, Mensink M, Zwerver J. The impact of nutrition on tendon health and tendinopathy: a systematic review. Journal of the International Society of Sports Nutrition. 2022 Dec 31;19(1):474-504.