Unlike most other fruits, which come from trees, the banana "tree" actually is a plant related to orchids and lilies. Bananas are one of the most nutrient-packed fruits nature provides us, with many health benefits. Most people know them to be a rich source of potassium. But bananas are also rich in vitamin B6, and has a respectable amount of vitamin C. A typical banana contains on average 4 grams of fiber, about 25% of what is often recommended. A diet rich in fiber helps in both weight loss and maintaining a healthy weight. Adding to an already healthy mix, bananas are a source of tryptophan, an essential amino acid (meaning our bodies cannot make it). Tryptophan is a precursor to serotonin, a neurotransmitter used in mood regulation. Finally, bananas have a large amount of natural sugars. This makes them an excellent choice as a post workout meal. At only 108 calories per banana, bananas provide an incredible health benefit. Eating a banana a day will provide you with many health benefits, whether you are losing weight, maintaining, or trying to bulk up. Bananas aren't just for monkeys.