First, read the English article below.

Many people eat 3 meals a day plus a snack or two.  If you're trying to gain weight, it is important to eat more food, more frequently. Aim for 5–6 meals daily or 3–4 meals with 2 snacks.  Each meal doesn't need to be large.  With more frequent meals you may feel more full throughout the day.  Snack-sized meals are appropriate (like a small pack of peanut butter crackers or two hard boiled eggs). You may need to rethink or plan out your day so you have enough time to consume 5–6 meals daily.  For example, you may need to eat right when you wake up so you're not too full before your next meal. When you're trying to gain weight it's important to maximize the amount of calories you can consume with each meal and snack.  Calorie-dense foods are items that are high in calories per serving.  Consume these foods with each meal and snack.  Calorie dense foods to incorporate into your diet include:  nuts and nut butters, avocados, full-fat dairy products (cheese, yogurt and milk), butter and oil, and eggs.  Also use full-fat condiments like regular mayonnaise, full-fat cream cheese or full-fat salad dressings. Not all high-fat foods are healthy or appropriate to eat more frequently or in larger quantities.  Minimize these foods: fast food, deep fried foods, candy, and high-fat processed meats (bologna or hot dogs). If you're eating multiple times throughout the day, you may feel more full.  This may lead to smaller meals instead of several large meals.  Even when meals/snacks are small, if they are calorie dense, they can help induce weight  gain. In addition to eating more calorie dense foods, you can also increase calories in your favorite meals and recipes.  Adding extra foods or using higher calorie ingredients in your recipes is an easy way to bulk up your total calories. The more of a caloric punch you can add to meals, the more calories you'll consume over a given day and week.  In recipes, use full-fat dairy products or dried milk in soups, stews or casseroles calling for water. Drizzle extra olive oil or add... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Ăn thêm nhiều bữa chính và bữa ăn nhẹ. Nên ăn thực phẩm bổ dưỡng giàu calo. Bổ sung thêm calo vào bữa ăn và công thức nấu ăn. Bổ sung thức uống có hàm lượng calo cao. Ăn món khoái khẩu. Nói không với nguồn chất béo không tốt cho sức khỏe.