Final answer:
The typical American diet is too high in unhealthy fats and calories, which contributes to obesity and other health issues. A balance of carbohydrates, proteins, fiber, and healthy fats, along with physical activity, is essential for maintaining good health.
Step-by-step explanation:
The problem that characterizes the typical American diet is b. too high in unhealthy fats. The American diet is notorious for excessive intake of calories, often from fatty acids, sugary processed foods, and starches, while being low in necessary nutrients like fiber. Instead of eating a balanced diet with adequate carbohydrates, protein, fiber, and healthy fats, many people consume too many calories that lead to the storage of excess fat and an increase in the risk of health problems such as obesity, type 2 diabetes, cardiovascular diseases, and certain cancers.
Carbohydrates are essential for biological functions and should be included in the diet for energy to power molecular, cellular, and organ system activities. Overnutrition from excessive energy intake and inadequate physical activity contribute to overweight and obesity issues, highlighting the need for a more balanced intake of macronutrients and better lifestyle choices