There are so many people who are following strict diets, hitting the gym, and trying hard to lose weight. On the other hand, there also are people who are thin and want to gain weight. If you are one amongst those, and putting on weight seems difficult, then try these 21 best high=calorie foods to gain weight fast.
Oily or fatty fish like mackerel, herring, tuna, and salmon contain a high amount of lean protein and omega-3 fatty acids. Not only can they help you gain weight but also keep you safe from diabetes, obesity, inflammation, and heart disease.