By Christos Sittas, Ramona Lehadus, Cagla E. Kayma, Iyanuoluwa Oyetunji, Barbara Cronje|Expert opinion from Christos SittasMSc in Nutrition and Exercise Sciences · 3 years of experience · UKOranges are very high in vitamin C which is an essential vitamin for collagen biosynthesis. Thus, it directly affects ligament and tendon health. Vitamin C is also a strong antioxidant with strong immunomodulatory properties. → Love Orange? Get nutritional facts, tips from health experts, and more