When you work out, your muscles will begin to grow and expand under the already existing layer of fat there. The expansion of muscles, coupled with the fat in your body, will make your waistline bigger.
Why did my waist get bigger?
A growing waist may be the result of a poor diet and unhealthy eating habits. If you are consuming more calories than you burn, you will gain weight. ... A diet rich in processed foods, artificial ingredients, unhealthy fats and sugars promotes weight gain.
How can I decrease my waist size?
Reducing your waist circumference
- Keep a food journal where you track your calories.
- Drink more water.
- Exercise at least 30 minutes, three times a week. More if possible.
- Eat more protein and fiber.
- Reduce your added sugar intake.
- Get more sleep.
- Reduce your stress.