I only eat 1 meal a day if i start eating two or three meals a day wont this cause weight gain?

I have been told many times that eating one meal a day is unhealthy- this usually by people who are in a continual long-term struggle to lose weight.

I have been eating one meal a day for a couple of decades. I fast every day- and I feast every day. I eat and enjoy as much healthy food as I desire in the later evening- without any thought of "dieting".

Result- I save an awful lot of time by not having to deal with multiple meals- which makes my day very productive-

and I still wear the same jeans that I wore thirty years ago! - and I am in Excellent health.

The one meal a day approach requires strong self discipline but then soon becomes routine

Meanwhile I keep hearing the same refrain over and over from the overweight- that one meal a day is not healthy.