Thanks, Andrew. You replied before I could, and much more succinctly.
@Glitterbritches the way I introduced real food again was
day 1, one less meal replacement, 1 meal of extra veg, small amount lean meat or white fish
Day 2, two less meal replacements, 2 meals extra veg with protein include an egg maybe or cheese
Day 3 as day 2 but have a small portion of carb with one meal
Day 4 as day 2 , but small carb portion with 2 meals
Day 5, drop the meal replacements, have meals of choice, but test BG regularly and eat to meter.
Check weight at least weekly. Be aware there could be a gain when eating real food due to glycogen stores being replenished. Remain vigilant with BG and weight checks take action if gains occur, by reducing carbs and calories as necessary.