Pedigree marrobones (not jumbones)

How bad are they? My dogs love them but now that I am reading about how bad the food is I guess the treats have to be pretty bad too.:yikes: They love the Jumbones too but I have read on this site that they are bad also.

Ingredients:
Wheat Flour, Meat & Bone Meal, Sugar, Natural Poultry Flavor, Animal Fat (Preserved with BHA/BHT), Cooked Bone Marrow, Calcium Carbonate, Salt, Malted Barley, Sodium Metabisulfite (A Preservative), Vitamin Supplements (A, B12, D3, E), D-Calcium Pantothenate, Niacin, Riboflavin (Vitamin B2), Pyridoxine Hydrochloride (Vitamin B6), Thiamine Mononitrate (Vitamin B1), Folic Acid.

Some ingredient information:
http://www.dogfoodproject.com/index.php?page=badingredients

I hope this helps.