Natures Aid Cod Liver Oil (High Strength) 1000mg contains key ingredients which are sources of Vitamin A, Vitamin D and Omega-3 fatty acids to maintain normal immune, muscle and blood calcium levels. Each 1000mg capsule of Natures Aid Cod Liver Oil is a source of Vitamin A, Vitamin D and Omega-3 fatty acids including DHA and EPA. Vitamin D helps to maintain normal blood calcium levels, normal immune function, normal muscle function and the maintenance of normal teeth, while Vitamin A contributes to normal skin, normal vision and the normal function of the immune system. It also supports the function of your mucous membranes, found throughout the body including your digestive system and urinary tract. Key Features of Natures Aid Cod Liver Oil (High Strength) 1000mg EPA & DHA helps reduce Blood pressure Rich in Vitamin A - Beneficial for skin and mucous membranes Aids Blood Flow Supports the normal function of the immune system