No, our food certainly wasn't healthier when we were children, except in one area - we consumed much less sugar.
In my home sweets were bought on Saturday for the princely sum of sixpence (old money) per child, and it was up to the child whether she ate the lot on Saturday, which my sister did, or spun them out to last the week (me). There were no more sweets before next Saturday whatever you did.
Lemonade was a party drink, we weren't even given it on Sundays. Orangeade, same rules. Two biscuits for each member of the family for morning coffee (we had ours with us at school to eat with our free milk).
If we were hungry between meals and asked we were allowed to take a slice of bread. (Quite literally, nothing went on that slice, you ate it in the kitchen or outside while playing).
Dinner was a 5.30 p.m. and nothing at all to eat until porridge in the winter and cornflakes in the summer at 7.30 next morning during term time - 9 a.m at the weekends and during school holidays.
Try running that regime past the grandkids - your ears will be blue with their comments!