Actually, there is significant research that shows that childhood obesity is an excellent predictor of adulthood obesity. Because sugar drinks made it so easy to take in way too many calories for children and hence became overweight, we now have a big cohort of adults with weight problems.

> Actually, there is significant research that shows that childhood obesity is an excellent predictor of adulthood obesity.

Fact.

> Because sugar drinks made it so easy to take in way too many calories for children and hence became overweight, we now have a big cohort of adults with weight problems.

Speculation.

Once you become a young adult, from that point on the total number of fat cells is conserved. Even liposuction will not change that.

This isn't completely hopeless, though. Fat cells "remember" the weight you are when they are created and fat cells turn over roughly 25% per year. However, it does mean that you need to hold your weight down for 3+ years for new fat cells to forget about the "fatter" you.

It doesn't matter how many fat cells you have if you're running a calorie deficit.