Bananas contain a wide variety of vitamins and minerals, the most striking one is vitamin b6 (and average banana gives 25% RDA). Potassium and magnesium from one banana is around 15% RDA. Manganese levels are around 25%. A banana is three quarters water.
If you eat bananas, you’re ingesting an enzyme called bromelain which is thought to increase testosterone levels. This is an enzyme that is also found in pineapples. Bananas and pineapples are a couple of the best fruit choices for those with low testosterone. Bromelain daily maintains testosterone levels after heavy exertion.
Vitamin B6 helps the body make several neurotransmitters, chemicals that carry signals from one nerve cell to another. It is needed for normal brain development and function, and helps the body make the hormones serotonin and norepinephrine, which influence mood, and melatonin, which helps regulate the body clock