How skinny people gain weight fast?
Eat five to six smaller meals during the day rather than two or three large meals. Choose nutrient-rich foods. As part of an overall healthy diet, choose whole-grain breads, pastas and cereals; fruits and vegetables; dairy products; lean protein sources; and nuts and seeds. Try smoothies and shakes. How can I gain weight in 7 days? 10 More Tips to Gain Weight
Don't drink water before meals. This can fill your stomach and make it harder to get in enough calories.