Which condition is associated with poor nutrition and fitness? obesity pneumonia strep throat stomach ulcers

**Obesity** is the condition most directly associated with poor nutrition and fitness. ### Explanation: - **Obesity** results from an imbalance between calorie intake and energy expenditure, often due to poor dietary habits (high-calorie, low-nutrient foods) and insufficient physical activity. It is a direct consequence of poor nutrition and lack of fitness. - **Pneumonia** is primarily an infectious disease affecting the lungs, caused by bacteria, viruses, or fungi. While overall health and nutrition can influence susceptibility and recovery, pneumonia itself is not directly caused by poor nutrition and fitness. - **Strep throat** is an infection caused by Streptococcus bacteria. It spreads through respiratory droplets and is not linked to a person's nutritional status or fitness levels. - **Stomach ulcers** are commonly associated with Helicobacter pylori infection or prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs). Diet and lifestyle can influence ulcer symptoms, but they are not primary causes related to poor nutrition and fitness. ### Answer: **Obesity** is the condition most closely linked to poor nutrition and fitness.