​​​​​​​ Cats eating lecithin can replenish the nutrients needed by their skin, help make their skin healthy, make their hair thick and shiny, and reduce hair loss. The main components of lecithin are lecithin, collagen, and fish oil. Lecithin is the main component of cell membranes and can help repair damaged skin cells and improve skin health. Collagen can maintain skin moisture and elasticity. Unsaturated fatty acids in fish oil Provides the nutritional needs of skin and hair.