I'm inclined to think it is easier for awhile, as long as you can maintain the additional eating. Aside from anything related to food, the biggest, most annoying expense everyone will deal with is clothing.
When I started, the first 10 lbs were hard. The next 10 lbs seemed a little easier, and the next 10 were easier still. However, I seem to have hit a plateau which I hope to break out of. I suspect this latest plateau might be more psychological, though. After another 10-15 lbs, I will be officially overweight according to BMI. Most Americans are indeed overweight, but still.. it's something, to realize that I will be too.
I wonder if there will be a similar psychological barrier if and when I'm about to cross the threshold of being obese, according to BMI. Although if you look around, a BMI of 30 still isn't really that big.
I think it's because of my body and digestive tract getting used to more food, and fattier food.
At a certain point you will probably be unable to consume enough calories to keep gaining, though. Or other practical problems will develop. But you would have to be at a very substantial size for that to be a problem.
Most folks will never get that big.
4 years