What maximum fat content must a product contain to be labeled as "lean"?

To be labeled as "lean," a product must have a maximum fat content of 10 grams or less per serving. This classification is part of the standards established by the USDA for meat and poultry products, and similar definitions apply to other food categories. The "lean" label indicates that the food provides a lower fat content relative to higher-fat varieties, making it a preferable choice for health-conscious consumers.

Therefore, the correct answer reflects this specific guideline regarding the maximum amount of fat allowed for a product to earn the "lean" designation. Understanding these definitions is crucial for making informed dietary choices and for those involved in nutrition and weight management.