>>21436114 (OP)Fact, high fiber bread-low fat bread, as pictured, is for dieting people. They feel more full, more satiety. A slice of regular whole wheat bread is nearly the same fiber of white bread, 2-4g max, unless it has alot of added seeds. You'd be overly full if you had a sandwich, but essentially just right if you had 1 slice of toast. For some people, it makes sense, and though artificial, a good choice when starting out and dealing with hunger pangs.
Fiber is insoluble vs soluble.
Insoluble is best thought of like apple skins vs glue-y oatmeal fiber. One digests but acts a bit like soft sticky glue paste. It's why oatmeal is so soothing on your tummy. The other kind kind of passes right through, a mesh of a molecule grabbing onto fats and other molecules pushing them through too, possibly even faster, not letting all water go too. Thinner, or softer, more watery poops might be what is good or bad to your GI, depending on you.
>empty caloriesThe term itself makes perfect sense. It is supposed to give you pause that what you get in overall calories per day, while you maintain said goal weight and mass, should also be contributing vitamins, minerals, enzymes, omega fatty acids, anti-oxidants, phenols, etc.
Extreme xample: If it's just Mountain Dew calories all day, what else are you getting except one type of sugar? It's empty of nutritional benefit. At the end of the day, 1200 calorie day, then you could be nutritionally lacking proteins and proper muscle tone, vitamin D, high cholesterol, whatever else. Think big picture. It's just another form of Eat This, Not That and adjust your menus or real issues each day.