Clearly, if you've gained weight, you have consumed more calories than you needed to maintain your previous weight. Nobody gains weight by absorbing calories from the air or sunlight. You may believe you're not eating more than you need to survive, but you are.
Unless you're comatose with a feeding tube up your nose, you decide what you eat and how much. So if you gain or lose weight, that is because of choices you make.
The reason we're all here is because evolutionary pressures selected for our ancestors who were best able to convert any available food into fat to tide them over lean times. We live in a time of perpetual plenty, and the fact that our bodies are annoyingly efficient at building up fat reserves is now a problem.
As a hypothetical example, say you know precisely how many calories you need to meet your energy needs every day and you eat only that many calories, but you also treat yourself to just six Chicken McNuggets every day. After a year, you will have consumed around 90,000 calories in excess of what you needed to maintain your starting weight, and you will have gained about twenty pounds in body weight.
Eating fruit and vegetables is good for us in various ways, but having a carrot after chugging back ten litres of carbonated sugar syrup is not going to do you much good.
Exercise is good for us for various reasons, but it's damn hard to lose weight only by exercise.
It's not my fault I'm fat
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Clearly, if you've gained weight, you have consumed more calories than you needed to maintain your previous weight. Nobody gains weight by absorbing calories from the air or sunlight. You may believe you're not eating more than you need to survive, but you are.
Unless you're comatose with a feeding tube up your nose, you decide what you eat and how much. So if you gain or lose weight, that is because of choices you make.
The reason we're all here is because evolutionary pressures selected for our ancestors who were best able to convert any available food into fat to tide them over lean times. We live in a time of perpetual plenty, and the fact that our bodies are annoyingly efficient at building up fat reserves is now a problem.
As a hypothetical example, say you know precisely how many calories you need to meet your energy needs every day and you eat only that many calories, but you also treat yourself to just six Chicken McNuggets every day. After a year, you will have consumed around 90,000 calories in excess of what you needed to maintain your starting weight, and you will have gained about twenty pounds in body weight.
Eating fruit and vegetables is good for us in various ways, but having a carrot after chugging back ten litres of carbonated sugar syrup is not going to do you much good.
Exercise is good for us for various reasons, but it's damn hard to lose weight only by exercise.