DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Polarised light macrophotograph of cod liver oil capsules. It is obtained from the liver of fresh cod and represents a valuable source of vitamin A and D. These vitamins are also present in dairy produce and vitamin A in green vegetables and carrots. Vitamin D deficiency causes osteomalacia (bone softening) in adults while vitamin A deficiency produces defective vision in dim light and thickening and hardening of the skin.
Model release not required. Property release not required.