The reason is that back then while Mars bars were more unhealthy - everything else was more healthy. Eg. Mayonnaise contained eggs and oil instead of the weird

The reason is that back then while Mars bars were more unhealthy - everything else was more healthy. Eg. Mayonnaise contained eggs and oil instead of the weird crap + sugar mayonnaise is made of now. Also even things like the vegetables has more minerals in and the chicken had less fat in it.