A lot of them contain highly saturated palm oil, which some believe is unhealthy (see controversy here) or partially or fully hydrogenated oils (meaning unhealthy trans fat), plus high levels of sugar. If you get rid of these things, it tastes different (less sweet), and also tends to separate with a big pool of peanut oil on the top unless you refrigerate it. But once you get used to the less sweet flavor and the simple act of storing it in the fridge, really it's quite good, and the old stuff starts to taste cloyingly sweet. :2cents:
Skippy Creamy Peanut Butter:
Roasted Peanuts, [color=#FF0080]Sugar[/color], Partially [color=#FF0040]Hydrogenated [/color]Vegetable Oils (Cottonseed, Soybean and Rapeseed) to Prevent Separation, Salt.
MADE FROM ROASTED PEANUTS AND [color=#FF0080]SUGAR[/color]. CONTAINS 2% OR LESS OF: MOLASSES, FULLY [color=#FF0040]HYDROGENATED [/color]VEGETABLE OILS (RAPESEED AND SOYBEAN), MONO AND DIGLYCERIDES, SALT.