Underweight affects 2% of US adults over 20. Underweight increases mortality risk. Can cause weakened immunity and hormonal problems
Weight gain requires consuming more calories than burned. Add 500 calories daily through energy-dense foods. Eat smaller, more frequent meals throughout the day
Metabolism determines how food transforms into energy for body functions. Fast metabolism requires more calories to maintain weight. Underweight BMI below 18.5 may indicate health issues
Recommended daily calorie intake for men ranges from 2,200 to 3,200 calories. Calorie needs vary based on age, height, activity level, and goals. FDA uses 2,000 calorie example but doesn't recommend it
Consult a doctor before making any dietary or bodily changes. Aim for 1/2 to 1 pound per week through gradual calorie increase. Don't exceed 500 extra calories daily
Eat smaller, more frequent meals throughout the day. Spread meals to avoid feeling too full. Allow an hour between different dishes