Why Did I Gain Weight Overnight?

We always say that it is important that you have the courage and motivation to work on your fitness goals. Sometimes it is difficult to maintain it and it is normal to be discouraged when you weigh yourself first thing in the morning and you do not see results. Even if you have a diet and specific training to lose weight, there may be days when the scale does not mark your goals, and there may be several reasons for this, including your weight at night. Let’s Read Why Did I Gain Weight Overnight?

Here we explain 7 reasons why this may happen and why they will not last long.

1. You Drink Too Much Water

Simple math. If, before going to bed at night, you drank 75cl water (3 glasses) for example, it is exactly 750 grams. If you drink too much water and weigh yourself when you have not yet “finished” it, it is normal for the scale to indicate a higher number than you expected. We should not worry about this or stop drinking water, you may have lost it during the first hour of the morning!

2. You Hit The Gym Really Hard

If you have gained a lot of weight yesterday, you may be a little disappointed in gaining weight. Why? Lifting weights can cause small tears in the muscle tissue. As these tissues try to heal themselves, muscles can retain extra fluid to help with this process. Normally, this effect usually lasts no more than a day or two, but it is worth it when you see how you gain strength!

3. The Night Before You Ate Too Much

The reason is quite clear, but it must be mentioned. If you eat a whole package of potato chips or pizza and drink too much margarita, you will gain weight temporarily because your body decides where to put that food. If it has no place to go, the body can store it in fat stores. But don’t worry, a crazy night doesn’t mean permanent weight gain.

4. Your Sodium Levels Are Higher Than Normal

If you have too much sodium in your menu the day before, you may feel heavy the next day. Sodium causes water retention. Foods such as frozen foods, soy sauce, or processed meats are high in sodium. Drink a few extra glasses of water to help your system eliminate excess sodium from your body. This may contradict the first point, but we must keep in mind that the weight gained by retaining water will not last long.

5. Too Many Carbohydrates The Day Before

It is very important for our body to maintain a balanced diet and eat all kinds of food to get all those vitamins. If you ate cereal for breakfast, sandwiches for lunch, and pasta for dinner, you are likely to gain some weight the next day. Like sodium, carbohydrates cause fluid retention. If you want to lose that extra water weight, stick to a low carbohydrate diet the next day (lean meats and fresh vegetables) and the weight will disappear without you knowing.

6. You Didn’t Go To The Bathroom Properly

Not going to the bathroom properly the day before can add one or two kilos to the scale. Make sure you always weigh yourself in these situations: before breakfast and after going to the bathroom.

7. Premenstrual Syndrome

Hormones in our body also play an important role in our weight.

Before menstruation, the body can also retain water, depending on the scale of weight gain overnight. The best way to deal with this is to drink plenty of water and eat healthily. In any case, after menopause, these symptoms go away.


Anyone trying to lose weight or maintain weight loss may find it frustrating, distressing, and demoralizing to see the number on the scale rise, even just a little bit. The last thing you want to experience, especially when aiming for a goal, is an unexpected schedule. Before going to bed, avoid eating or drinking certain items that can make you retain water.

One important element that can contribute to weight gain overnight is sodium. In general, consuming a lot of carbohydrates can make you gain weight. There can still be food in your stomach if you weigh yourself sooner than usual.

Intense exercise the day before might lead to water retention as the muscles attempt to mend microtears and abrasions. Don’t worry about the weight today if this is the kind of increase you are experiencing. Water retention is temporary and unrelated to body fat. This will disappear on its own and with exercise.

Frequently Ask Question

Why did I eat more quickly than usual?

Rapid weight gain in specific body parts can be due to water retention. If the weight gain is high, it may be an indication of heart failure. According to the American Heart Association, weight gain of more than 2 to 3 pounds per day, or 5 pounds per week, could be a sign of heart failure.

Can weight gain result from eating too few calories?

An unhealthy diet distress loop that results from consuming insufficient calories can begin. You may feel discouraged that your efforts are in vain. when you reduce your calorie intake to the point where your metabolism stops and you stop losing weight. You can end up overeating as a result and putting on weight.

What diseases result in weight gain?

It’s important to check with your doctor if you are gaining weight rapidly or significantly to discover if you might be suffering from one of the following conditions:
Hypothyroidism, polycystic ovary syndrome Persistent depressive disorder, insomnia, peptic ulcer, Cushing syndrome, persistent depressive disorder, enlarged heart disease

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