"...it was really easy to gain back..."
LOL
Processed foods are usually made with ingredients and by means that seem to maximize carbs and our bodies turning them into fat. I'm becoming more and more convinced I should eat a keto diet and tightly control my carb intake.
I lost mine while we were in Panama in anticipation of a trip to the US so I could gain some of it eating out. Ha! We rarely eat out here - birthdays or when people come visit.