Final answer:
Greg's symptoms such as erosion of dental enamel, hair loss, and continual sore throats are indicative of a nutrient deficiency linked to excessive dieting or disordered eating to maintain his wrestling weight class.
Step-by-step explanation:
Greg, a college wrestler facing difficulties maintaining a weight class lower than his natural category, is exhibiting symptoms that suggest a nutrient deficiency. The symptoms you described, such as the erosion of dental enamel, hair loss, and continual sore throats, are indicative of significant nutritional issues that might arise from severe dieting or disordered eating practices, which are not uncommon in sports with strict weight categories. Moreover, other indicators of nutrient deficiencies include fatigue, poor growth, gastrointestinal problems, and epithelial problems like cracks in the corners of the mouth, all symptoms that could link to Greg's rigorous weight control methods.
Specific nutrients that could be deficient given Greg's symptoms may include calcium and vitamins, which are vital for maintaining healthy teeth, as well as proteins and other vitamins essential for hair growth and immune function. Immediate attention from a healthcare professional is necessary to properly diagnose and treat potential nutritional deficiencies to prevent further deterioration in health and athletic performance.