Guinea pigs are strict herbivores, with Timothy hay as their main food source, and they absolutely cannot eat meat. Due to their fast metabolism, their cage must always have a 24-hour supply of fresh Timothy hay and water. Additionally, fresh fruits and vegetables should be provided in measured amounts at regular intervals to supplement their vitamin C needs and maintain their health.

Guinea pigs can be bathed, but avoid wetting their head and ears to prevent meningitis. Use no-rinse wipes for minor cleaning. Baths are unnecessary unless needed and should be at least a month apart. Always dry their fur immediately after bathing to prevent colds.