Why does weight change every day?

Who has lost weight at least once, he knows that body weight changes every day and even sometimes several times a day. Experts do not recommend weighing more than once a week, but it is very difficult to resist the temptation. Daily fluctuations in weight – this is the reason why you should not rejoice at a small minus and get upset about a small weight gain. This is the answer to the question of why body weight changes so often, having received it, it will be easier for you to control the process of losing weight.

Everyone who has lost weight knows that body weight changes every day. Many have noticed that weight changes several times a day. Experts do not recommend getting up on the scales more than once a week, but it is difficult to resist the temptation. Seeing that the weight has changed since yesterday, people begin to build hypotheses, think that they ate too much or, on the contrary, practiced hard. Assumptions may be true, but there are other reasons for daily weight changes.

Why does weight change so often?

When losing weight, people tend to think that weight changes due to the loss or increase in the amount of fat. But the body is much more complex. On average, fluctuations in weight per day can reach 2 kilograms in the direction of increase and decrease. The greater the weight – the greater the fluctuations, in obese people, the difference can reach up to 9 kilograms. Consider the main causes of rapid changes in weight.

Sodium Products

Eating foods with a lot of sodium causes fluid retention in body tissues. Some people are very sensitive to sodium, they are heavily gaining weight when eating salty foods. We use sodium not only in the form of salt, most of all sodium is found in canned foods, convenience foods, fast food, ready-made food from the store.

Excess carbohydrates

If you love everything starchy – pasta, rice, bread, then weight gain comes not only because of extra calories. For every gram of carbohydrates from food, the body accumulates about three grams of water, the body thus stores the main source of energy.

Give up high-carb foods and make your weight more stable.


Indeed, intense training makes body weight less, but it is not a matter of burnt fat. Active physical activity stimulates sweating, on average during training we lose from 800 ml to 1.5 liters of fluid per hour. The amount of sweat depends on the intensity of training, the characteristics of cardiovascular activity, weather conditions and other circumstances.

Taking drugs

Medicines lead to weight gain in different ways, some increase appetite, others cause the body to accumulate fluid in the tissues. Some drugs affect glucose metabolism, their long-term use can lead to obesity. Treatment for diabetes, high blood pressure, migraines, or seizures can increase your body weight by as much as five kilograms per month.

Taking drugs

Menstrual cycle

Before menstruation and during the period, many women feel inflated, especially in the abdomen. Studies have shown that peak fluid retention occurs on the first day of the menstrual cycle. It was found that fluid retention is not associated with fluctuations in the hormonal background, it is assumed that this is due to the unusual taste preferences of women and the abnormal use of water these days.

Do I need to worry about weight fluctuations?

Slight weight fluctuations should not be cause for concern. But if the weight rises or falls rapidly for 5-7 days in a row for no apparent reason, then this may indicate a medical problem or a simple increase in body weight.


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