It's possible. Eat more and exercise more. Here are some relevant information: 1. A fattening diet. The minimum configuration to achieve the goal of fattening: brief content: breakfast: sauce meat 100g (half fat and half thin), 4 pieces of bread (as thin as possible with sauce meat), butter 100g (also used for eating bread), and 2-3 fried dough sticks (must). Don't add seasoning when eating), 500 grams of milk (preferably not defatted) can gain weight 10-25kg by sticking to this fattening secret recipe for 3-5 months. Breakfast: sauce meat100g (half fat and half thin), 4 slices of bread (as thin as possible, used to sandwich sauce meat), butter100g (also used to eat bread), 2-3 fried dough sticks (must be eaten while it is hot), 2 eggs (preferably boiled without seasoning) and 50 milk. Mutton100g, chicken100g, pasta 250-500g (which can be adjusted according to appetite and mood), a little green vegetables, a can of old fire soup (about 1000ml), and 200g of dessert after meals (try to choose foods with more cream). Note: The quantity of green vegetables must be strictly controlled. Try not to eat rice (it's too low in calories). Dinner: pork 250g (half fat and half thin), beef 150g, mutton 100g, chicken 100g, pasta about 250g (adjustable according to mood and appetite), a little green vegetables, and 3-5 bottles of beer (640ml/). Note: go to bed immediately after eating, and the interval should not exceed 10 minutes, otherwise the effect is not obvious enough. You can also increase your diet according to your actual situation. This secret recipe is only the minimum configuration to achieve the goal of fattening. Second, how to improve the absorption and digestion ability of the stomach and achieve the purpose of fattening, such as pears, sesame seeds, lotus roots, soybean milk, snow ear, sugar cane, honey, black-bone chicken, duck eggs and so on. To be less spicy and sour means to eat less spicy food such as onion, ginger, garlic and pepper and more sour fruits and vegetables such as apples, pomegranates, grapes, grapefruit, hawthorn and carambola. Eating it will naturally make you fat. Third, dieting will make you fat [edit this paragraph]. Eat less and eat more, but don't increase the amount of food per meal. Because most thin people have weak gastrointestinal function, eating too much at a meal often cannot be effectively absorbed, but it will increase the burden on the stomach and cause indigestion. You can change the number of meals per day to 4~5 times. Food is based on the principle of high digestibility, high protein and high calorie, and gradually increases the intake of various nutrients, such as chicken, fish fillets, vegetables, sea cucumbers, butter and cream. Eat whatever you want to promote appetite. At the beginning of the "fattening" plan, you can choose some delicious food you want to eat to stimulate your long-term tired appetite. It is suggested to buy some special recipes with beautiful pictures and cook all kinds of delicious food in various ways. Let the diet that is good for you be seen everywhere. Besides dinner, we should also eat some snacks in moderation. At ordinary times, you might as well put some snacks with certain calories within your reach, such as biscuits, raisins, mung bean cakes, sausage bread, whole milk powder and chocolate. Eat if you want. Eating with oranges, oranges and other fruits, or adding juice to whole milk powder, can help the body consume more calories. Avoid eating foods that are irritating, easy to produce gas and have too much crude fiber, because such foods are easy to make people feel full and reduce their food intake. Appropriate vitamins and trace elements can be supplemented when necessary; Or take some Chinese patent medicines for regulating the spleen and stomach, such as hawthorn pill and Zhusha Yangwei Pill. Don't eat too much at night, otherwise it will increase the burden on the stomach, which is not good for health and sleep, and is also bad for bodybuilding. Pay attention to control the intake of fat, and don't eat too much fatty food for short-term fattening effect, which will not only cause weight gain, but also cause diseases such as coronary heart disease. Some fattening products in the health care products market are generally uncertain and should be carefully selected.