Lions are carnivorous animals and primarily eat meat. Their diet typically consists of a variety of different prey, including wildebeest, zebras, buffaloes, giraffes, and other grazing animals. They also eat smaller animals such as warthogs, impalas, and monkeys.

Lions are apex predators, meaning they sit at the top of the food chain and have no natural predators. They are opportunistic hunters and will prey on any animal that is available to them. They typically hunt in groups, known as "prides", with females doing most of the hunting and males patrolling the territory to protect the pride and their food source.

Lions are also known to scavenge on the kills of other predators such as hyenas and crocodiles. This is particularly useful during times when hunting is difficult, such as during droughts.

It's important to note that lions in captivity, such as in zoos, have a different diet. Their diet is usually composed of a combination of raw meat, commercial carnivore diet, and fruits. The diet is formulated to meet their nutritional needs and veterinary supervision is necessary to ensure that the lions are receiving adequate nutrition.