19 NEXT A BOOKMARK mation about dairy products, lactose, and lactase are listed in the table shown. iry Products and Lactose and Lactase in Humans Dairy Products Lactose and Lactase in Humans An enzyme, lactase, breaks lactose down in the body. Source of protein and minerals Some people do not produce enough lactase. Too little lactase causes abdominal pain when dairy is eaten. Contain lactose A gene controls lactase production. on this information, which hypothesis best predicts how a change to the gene could affect people who do not ce enough lactase? A change that causes the gene to increase the amount of lactase it produces will increase a person's ability to break down actose. A change that causes the gene to decrease the amount of lactase it produces will positively affect a person's body.

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Nutrition and diet

We are involved in several daily activities. These actions need a significant quantity of energy. The food we eat provides this energy. Food is necessary for development, repair, and other living activities since it supplies energy. All of these are part of the living practice known as nutrition. Nutrition is the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease. Nutritionists employ concepts from molecular biology, biochemistry, and genetics to understand how nutrients affect the human body. Nutrition also looks at how people can use their diet to reduce their risk of disease, as well as what happens when they ingest too much or too little of a nutrient and how allergies emerge.