I wrote a similar article on this topic many years ago and it received a ton of feedback. I was actually surprised at the number of people that practice eating one meal a day to manage their weight.
Most nutritional advice commonly says to eat between 5 and 6 small meals per day for weight management — at the very least, 3 meals a day.
However, there are many people who manage to eat one meal a day and manage their weight just fine. You still have to ask yourself is eating one meal a day healthy?