The nurse uses a chart to show an obese patient who is trying to lose weight by counting the calories that each gram of carbohydrate supplies _ calories.

A. Lactose intolerance is more related to the absence of the enzyme lactase, which breaks down lactose (milk sugar) and can occur in individuals regardless of their dietary choices.
B. Vegan diets may lack sufficient intake of absorbable iron, as plant-based sources of iron (non-heme iron) are not as readily absorbed by the body compared to heme iron found in animal products. This can put vegans at a higher risk of iron deficiency.
C. Diabetes risk is influenced by various factors, including genetics and lifestyle, rather than specifically by following a vegan diet.
D. Pneumonia risk is not directly associated with following a vegan diet but can be influenced by overall health, immune function, and exposure to pathogens.

A. Minerals play a crucial role in muscle contraction, nerve transmission, and the overall function of muscles and nerves throughout the body.
B. Vitamins and minerals have a complex interplay, but minerals themselves do not directly facilitate the absorption of vitamins.
C. Proteins are primarily metabolized with the help of enzymes, not minerals.
D. Fluid balance regulation involves minerals like sodium and potassium but is not the sole function of minerals.