Think about it. By “eating too little”, do you mean…
Eating less than normal?
Eating less than you’ve been told to eat?
Eating less than feels right?
Eating less than you need to be healthy?
Eating less than your estimated metabolic rate?
Eating less than your actual metabolic rate?
And how often does that apply? Are you…
Eating too little at one meal?
Eating too little on one day?
Eating too little every day?
Eating too little almost every day but too much on some days?
Without clarity on some of these questions, you can see how easy it is to assume you’re “eating too little” but still not eating less than your actual energy expenditure, even if you did some test to estimate your metabolic rate and it seems like you’re eating less than that number.
Most times, the problem is perception.
As human beings, we’re bad at correctly judging how much we’re eating and expending. We tend to think we eat less and burn more than we do — sometimes by as much as 50 percent.