Jellyfish are not only a delicious treat, they are also a source of protein and nutrients. Jellyfish are animals that have been around for over 400 million years. They have adapted to the changing environment in many ways. Jellyfish may be more than just tasty, they could also be a source of protein and nutrients for humans. Although jellyfish are a source of protein, they do not contain any cholesterol. Drinking the juice from jellies can help people with type 2 diabetes and heart disease because it is low in carbohydrates and high in protein. Jellyfish have been used as a dietary deficiency remedy for baldness, eczema, obesity, senile dementia and tuberculosis. They also contain vitamins B2 and B12 that are essential for healthy skin and hair.