If you're concerned about getting enough nutrition and you're unable to spend the time necessary to cook your own fresh, healthy meals, one option you have is drinking meal replacements like Ensure. While these drinks contain very few natural ingredients, they do have a number of synthetic macro and micronutrients that can help you balance your diet. You can add these drinks to a diet of nutritious, real food to replace one meal a day, but beware of making them a replacement for all your food.
Determine your nutritional goals. Ensure and other meal replacement drinks have different formulations, and some will be more ideal than others. For example, if you're looking to lose weight, you will want a product with many nutrients, but low in calories. If you're looking for something to boost your workouts, you might want something with more protein.
Read the labels carefully. Ignore the way the product is marketed, like "high protein." Instead, look at the nutrition facts on the back. Based on which nutrients you're looking for and which are listed on the back label, pick out a meal replacement drink for you.
Add Ensure to your daily routine, drinking up to one a day. But remember, it's a meal replacement, not a meal addition. Unless you're looking to bulk up, you shouldn't be adding Ensure to your meals, it should replace a meal. If you find you're still hungry after drinking a bottle, feel free to chomp on a piece of fruit to make you feel fuller.
Eat healthy, nutritious meals the rest of the day. Taking into account your caloric and other nutritional needs, plan healthy meals. Drinking a nutrient-dense meal replacement shouldn't give you a reason to eat junk food the rest of the day. These drinks only give you some, not all, of your daily nutritional requirements.
Give your meal replacement about a month or so of regular use, and ask yourself how you feel. As with all supplements, different people may have different reactions, and while you may feel healthier and more energized with this product, you may not notice any difference at all or you may even feel worse.