I was on prednisone for 4 months once. I didn't gain weight, but it weakened my immune system while I was on it.

I've lost 60-65 pounds and have kept it off for decades.

Meals?

Breakfast: 18 raw almonds and 2 cups of tea sweetened with stevia

Mid morning: Whey shake sweetened with stevia.

Lunch: Big meal of the day. Perhaps an omelet, or a cheeseburger with a zero carb bun, or a piece of cod fish fried in unsweetened coconut flakes, or a piece of brie with a low-carb millet/flax lavash, or some cheese and flackers, or a home-made pizza on a low carb lavash, or whatever. Smaller than most people's lunches.

Snack: A palm full of mixed nuts or some 85% chocolate or sometimes nothing at all.

By 6PM: it's summer so some Enlightened or Rebel keto ice cream.

I don't eat anything between 6PM and 7AM the next day.

Simple plan: Fewer than 1800 calories, fewer than 20 carbs per day and twice as much fat as protein.

Bob