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How to eat a lot
If needed, look for inspiration from someone who likes food.
If you want to gain weight, you will need to consume more calories each day. Slow, gradual weight gain is the safest and healthiest method of increasing your body weight.
In general, health experts recommend consuming an extra 250-500 calories daily for safe weight gain. This results in about a 1/2 to 1 pound weight gain each week.