what is melanin, melatonin and niacin

1 answer

Melanin:

Melanin is a natural pigment produced by cells called melanocytes. It is responsible for determining the color of our skin, hair, and eyes. The amount and type of melanin in our bodies are determined by our genetic makeup. Melanin serves several important functions, including protecting the skin from the harmful effects of ultraviolet (UV) radiation, acting as an antioxidant, and helping to regulate body temperature.

Melatonin:

Melatonin is a hormone produced by the pineal gland in the brain. It plays a crucial role in regulating the sleep-wake cycle, also known as the circadian rhythm. Melatonin levels in the body naturally rise in the evening, signaling our brain that it's time to sleep, and decrease in the morning to help us wake up. Melatonin supplements are sometimes used as a natural sleep aid or to help manage sleep disorders such as insomnia.

Niacin:

Niacin, also known as vitamin B3, is an essential nutrient that our bodies need for various functions. It plays a crucial role in converting food into energy and is involved in the synthesis of DNA and the repair of damaged cells. Niacin also helps to regulate cholesterol levels by lowering LDL (bad cholesterol) and increasing HDL (good cholesterol). It can be obtained through diet by consuming foods like meat, fish, whole grains, legumes, and nuts, or through supplements.