Can meal replacements and weight-loss pills really help you lose weight? Be aware of the side effects and the risk of weight regain.

A quick search online reveals a dazzling array of meal replacement products. Meal replacement cookies, shakes, powders, and food kits... These products range in price from tens to hundreds or even thousands of yuan, and their marketing often emphasizes "low energy and high satiety." But can these meal replacement products really help with weight loss?

Common meal replacement products on the market generally have very low calorie content, even far below the minimum daily calorie intake required by the human body. Of course, if you consume insufficient calories for a long time, you will lose weight. Even if you don't eat meal replacements and only eat one apple a day, your calorie intake will be very low, and you will still lose weight.

Moreover, prolonged calorie deficiency leads to significant problems such as insufficient bodily functions and malnutrition. The body will break down protein, resulting in loss of lean muscle mass and a lower basal metabolic rate. Once you resume normal eating, your weight will rebound immediately, and you may even become fatter than before. This kind of weight loss is meaningless and counterproductive.

Although these meal replacement products claim to be nutritionally balanced, their nutritional composition is actually severely imbalanced. They neglect many essential minerals and vitamins, and the nutrients in meal replacements cannot compare to those in real food. Some obese people may lose weight by eating meal replacements for a couple of weeks, but can they maintain this diet for a lifetime? Long-term consumption of meal replacements, in addition to causing weight rebound, seriously affects health and is not worth the cost.

The same is true for weight-loss drugs. Scientific studies show that even when combined with exercise and dietary control, the weight-loss effects of these drugs are very limited and come with a host of side effects. To make the effects more noticeable, manufacturers often add varying amounts of irritating laxatives to induce diarrhea and diuresis, causing significant damage to the intestinal tract. The weight lost this way is not from fat reduction, but from water loss due to diarrhea. As soon as you eat and drink some water, the weight quickly returns.

Weight-loss drugs that block fat absorption and suppress appetite also often pose significant safety risks. Many people have suffered liver dysfunction and kidney damage from taking such drugs. Weight-loss drugs may not be expensive, but the cost of addressing the health problems they cause can be thousands of times more than the cost of the weight-loss drugs themselves.