Research a diet that became popular in the past; it may even be one that you or a family member tried. Consider the effect of this diet on the body at a chemical/molecular level . Break down the diet...

Research a diet that became popular in the past; it may even be one that you or a family member tried. Consider the effect of this diet on the body
at a chemical/molecular level. Break down the diet and what impact it has on a person's
body systems
and
individual cells
(a good example is the high-fat low-carb diet)