Taste buds are cells on your tongue that allow you to perceive tastes, including sweet, salty, sour, bitter, and umami. They’re located inside the tiny bumps covering your tongue called papillae. Taste buds regenerate approximately every 10 days, which means injured taste buds usually repair on their own. Basal cells develop into new taste receptor cells every week or two (10 days on average). Our taste buds decrease as we age, which means that your perception of taste changes at different stages of life. The foods you love as an adult may differ from those you love as a child. Similarly, taste perception changes as you transition through adulthood.

Source: Cleveland Clinic