Which term describes a person that is 20-40% heavier than their ideal weight?

The term that best describes a person who is 20-40% heavier than their ideal weight is "mildly obese." This classification is often used in the context of obesity and weight management to indicate a specific range of excess weight that can have implications for an individual's health. Mild obesity typically reflects a body mass index (BMI) range that may start to pose health risks but is less severe than more extreme forms of obesity.

Understanding the terms associated with weight status is crucial for addressing health and wellness appropriately. "Moderately obese" would typically refer to someone who is over 40% heavier than their ideal weight, indicating a higher risk for health complications. "Merely overweight" generally describes individuals who are above the ideal weight but do not meet the criteria for obesity. Being "underweight," on the other hand, describes individuals who weigh less than what is considered healthy for their height.