Nutritional benefits of specific fish parts and varieties

Commonly available fish varieties and specific parts, such as skin and heads, offer significant nutritional value for bone and joint health. Herring is noted for being rich in omega-3 fatty acids, protein, and vitamin D, which help regulate inflammation, maintain muscle mass, and assist in calcium absorption.

Small fish like anchovies provide a cost-effective source of calcium and protein, especially when consumed whole with the bones. Additionally, fish skin and heads contain collagen, a structural protein that the body breaks down into peptides and amino acids during digestion. While skin can convert to gelatin when cooked, experts advise choosing fresh fish and being mindful of preparation methods, such as avoiding excessive oil or salt, to maintain health benefits.