Final answer:
A typical portion size for a lean meat exchange is around 1 ounce, which is roughly equivalent to the size of a matchbox.
Step-by-step explanation:
When considering portion sizes for lean meats within a balanced diet, a common guideline is that one serving of lean meat is about 1 ounce. Visual cues help estimate this portion size: it's close to the dimensions of a matchbox or the palm of your hand (excluding fingers). Examples of lean meats include chicken breast without skin, turkey, fish fillets, or lean cuts of beef or pork.
Keeping portions in check is crucial, as excessive consumption of even lean meats can contribute to an increased intake of saturated fats and calories. This can affect overall health, particularly heart health. Adjusting portion sizes ensures a balanced intake of proteins and other nutrients while maintaining a healthy weight.
Correct Answer: A typical portion size for a lean meat exchange is around 1 ounce, roughly equivalent to the size of a matchbox.