It is not just in fast food places that the servings are too large. (We don't eat fast food except when traveling and that is all that is offered in smaller airports) On special occasions, my husband and I will go out to a nice restaurant, and the servings are still way too large. We will split a salad or appetizer and if "small plates" are not available and we have to order full size main dishes, I will only eat 1/3 to a 1/2 of it. I have often just ordered an appetizer as my main dish.
Both of us are fit and trim, and I believe that is due to enjoying our own cooking at home where we have total control over the ingredients and portion sizes.
The large portions don't disgust me, since it was a really nice restaurant and high quality ingredients, I don't mind having it for dinner on another day. If forced to eat at a fast food place by circumstance, I try to pick the smallest simplest thing that is nutritious...just enough to stave off hunger until we can have a real meal. Lately, I have been carrying my own food when we fly because I seem to be sensitive to something in wheat(not necessarily gluten) and most airline food is full of wheat.
I believe you are what you eat...so I always choose the highest quality, freshest ingredients I can afford, with the highest nutritional content, then eat -with enjoyment- a moderate amount.
This has worked for us.
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