On the ingredients it shows 0 grams of sugar, but 21 g of
Lactitol? Are these on the program? They are little miniture
chocolate bars and also they have the Reeses peanut butter cups.

They are sugar alcohols.

This is some nutritional value I found on it:

Low in calories: Lactitol is not metabolized like a carbohydrate (or like sugar) and therefore does not contribute the usual 4 calories per gram. Lactitol is metabolized in the large intestine and yields, according to tests, only 2 calories per gram. The Scientific Committee for Food of the European Union has provided a Nutrition Labeling Directive stating that all sugar alcohols, including lactitol, have a caloric value of 2.4 calories per gram. Canada has assigned a 2.6 caloric value to lactitol.

Personally, I stay away from sugar alcohol products. Remember, they still have calories, AND fat!

I tried one of those hershey lc candies, it was very tasty but boy did I get a stomach ache, not worth it imho. DARN!!!!