The package I checked out contained two grams of product. The instructions indicated the granules could be sprinkled on hot moist foods such as a freshly baked potato and which promised real butter taste. Calories per serving was just a 10, with no fat or cholesterol. The sodium was also low at 75 mg. While they are not cheap, they do provide a good substitute for the real thing and may be better for you than margarine.
For my taste test I elected to go with a baked Russet potato where I also used fake salt and real pepper. Following is a nutritional breakout of key ingredients that show the before and after effects of subbing fake for real on a 238 gram potato.
Potato with real condiments w fake 1 pat of butter and dash of salt
Gram wt 238 g 238 g
Calories 160 196
Cholesterol 0 mg 11 mg
Sodium 0 mg 184 mg
Carbs 41.8 g 41.8 g
Actually, the overall taste was pretty darn good. And, just take a look at the reduction in the sodium, fat and cholesterol! The fake salt I used was actually potassium chloride which takes a bit of time to get used to.