Originally Answered: In biology, what is chiasmata? If you are asking for cell biology, âChiasmaâ is a point of overlap of paired chromatids at which fusion and exchange of genetic material take place during prophase of meiosis. It is the X-shaped structure formed at the point below the brain where the two optic nerves cross over each other.
However, a diet rich in fruit and vegetables that is typical of a vegan diet has a positive effect on the calcium economy and markers of bone metabolism in men and women (49). The high potassium and magnesium content of fruit and vegetables provides an alkaline ash, which inhibits bone resorption (53).
Protein is an important nutrient for skin, bone, muscle, and organ health. Since vegans do not eat meat, eggs, or dairy products that are rich in protein, they must eat a variety of plant-based foods to meet their daily protein requirements.