AP BIOLOGY

Detailed explanation-1: -Food and drinks allowed on a no-carb diet include meat, fish, eggs, cheese, butter, oils, water, and plain coffee or tea. If you’re less stringent, you can also eat nuts, seeds, non-starchy vegetables, and high-fat fruits like avocado and coconut since these foods are low in net carbs.

Detailed explanation-2: -Lettuce. While all leafy greens are significantly devoid of carbohydrates, lettuces (due to their super-high water content) are the lowest in carbs. According to Medical News Today, a serving of iceberg lettuce has about 2.97 grams of carbohydrates.

Detailed explanation-3: -Lettuce (1 cup, shredded or chopped) contains 1.6g total carbs, 1g net carbs, 0.1g fat, 0.5g protein, and 8 calories.