2 meanings of the phrase "gaining weight"


  1. When your weight goes back to your Base weight  (A)
  2. When your Base weight itself increases (B)

Please check out my blog below before reading this one.

"The highest priority is the mechanism to maintain present condition"

I would like to define first. There are 2 meanings of the expression "gaining weight" which we use daily. I think the confusion of these 2 meanings cause a lot of misunderstandings.

For example, such as “you'll gain weight if you eat a lot of calories” or “even with diets when you rebound, you might weigh even more than you did before you did the diet” etc.


I realized this when I got really thin, but I think the confusion of these 2 meanings result in various misunderstandings and false information and most people are dieting in the wrong way.

1.When your weight goes back to your Base Weight  (A)

First one is “gaining weight” meaning to go back to your Base Weight based on the mechanism to "maintain present condition". Many of those who are obese try to reduce calorie intake or do exercise to reduce weight. In such cases, the body will always try to go back to your Base Weight so as soon as you eat, naturally, you get fat.

When people say “I will get fat if I eat cake ” or “I gain weight when I eat a lot”, they are mostly talking about this meaning.

I often meet women who say “My body tends to gain weight when I eat a lot” but it really means that the body is repeating a “mini-diet” and a “mini-rebound” by the mechanism to "maintain present condition".

(Japanese actor, Toru Watanabe)

▷Toru Watanabe, Japanese actor, used to be heavy but with a diet, he weighed around 70kg when he appeared on a TV show.

However, when he got married at 26, he couldn't maintain his diet anymore and ate a lot and he went back to 130kg. (It is said that he made a new record for his weight change every time he dieted)

Again with the help of his wife’s home cooking, he succeeded in losing 40kg. However, after all he repeated rebounding. It’s quite famous in Japan.

Here, “gaining weight” means the mechanism of going back to your Base Weight, so you will put on weight as soon as you take sugar, meat and fat etc. (You can imagine a beaker in which water is increasing and decreasing)

2.When your Base Weight itself increases (B)

On the other hand,the second “gaining weight” means that your Base Weight itself increases. Though I haven't changed amount of intake (I rather reduced a little), I gained 3 kg in the last year or gained 10kg in the last 3 years... meaning your maximum weight has been increasing.

This is not due to intake amount or calorie but by the mechanism of starvation (strictly speaking, I defined it as “intestinal starvation” ).
For example, someone who has never been more than 60kg has become 63kg in the last year. In this case, it means that his/her Base Weight itself increased from 60kg to 63kg.

(Two meanings of gaining weight)

When you gain weight to your Base Weight from a rebound after a diet, it's the (B) mechanism , but if you gain weight naturally more than your Base Weight, it is the (A) mechanism. This is because the diet creates a  starving situation.

An extreme argument, Sumo wrestler(Japan's national sport) gain weight with mix of (A) and (B) and though it looks like they gain weight by eating, the mechanism is the same as those who gained even more weight after doing a diet.

Generally, it is said that “eating while your metabolism is low makes you fat” but I will write an argument to this soon.

Note: Through my own experience and people around me who gained weight suddenly, I became certain that my theory is right so I wrote this article. If I can correspond with a research institute, I have the means to prove it.

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