Bears have diverse feeding habits in their natural state. They tend to be largely herbivorous in feeding habits. Polar bears, however, almost entirely feed on carnivorous diets such as fish and seals. Bears are usually fed at about three per cent of their body weight on dry matter basis. The amount of feed is increased prior to denning or during lactations. Most bears do well on frozen canine diets and fish. Green vegetables and fruits are also regularly supplied for captive animals. It has been observed that bears eat maximum amount of feed during summer months as compared to winter months. Bear tends to feed all the time. The feeding regimen should be diverse as much as possible. When captive bears are fed ground muscle meat, then calcium carbonate should be supplemented at 400 mg/100 g of meat in addition to multivitamin-trace mineral supplements. The milk substitute for young bear consists of low fat and low protein synthetic milk powdered and water.