Which can affect basal metabolic rate?

The factor that can affect basal metabolic rate (BMR) among the options you provided is age.

As individuals age, BMR generally decreases due to loss of lean body mass and other physiological changes.

Here’s a brief explanation of the other options:

• Hunger: While hunger can reflect metabolic needs, it does not directly affect BMR.

• Appetite: Similar to hunger, appetite pertains more to the desire to eat rather than a direct influence on BMR.

• Daily values: This term typically refers to reference values used in nutritional labeling and does not directly affect BMR.

In summary, age is the key factor among your options that influences BMR.