The Doc on Diet: This shows how ridiculous the whole low-carb obsession is. For those of you who think this is new and innovative, In-N-Out has been doing it for years. They call it "Protein Style."

(There's a whole group of insider stuff you can get at In-N-Out. 4x4's, Protein Style, Animal Style, and so on. But that's another post.)

If you can look at that burger and think it's going to lose you any kind of weight, you're out of your gourd.

The other silly thing that's popping up on everything is the idea of "Net Carbs." What the heck is a "Net Carb?"

It's a carb that effects your blood sugar level. There are certain types of carbs--usually sugar alcohol--that don't seem to have an effect on your blood sugar. Great if you're diabetic, not so great if you're trying to lose weight. The carbs don't disappear if you don't burn them--they get stored, just like any other carb. Granted, if your blood sugar levels are lower, your body will naturally store less fat. However, if you don't burn those calories, they still go somewhere.

But the whole low carb idea is just bad nutrition. Carbs are essential to good nutrition. Carbs are what fuel your brain.

The fact is, everything you eat is one of four things--a carb, a protein, a fat, or fiber. Your body needs all four. If you eat more calories in them than you burn, you're going to gain weight. If you eat less of them than you burn, you're going to lose weight. Your body is capable of burning about 1-2 pounds of fat a week, so just eat 500-1000 calories a day less than you burn, and you'll lose weight from fat.

Eat more, and whether it's carbs, protein, or fat, you're going to gain weight.

And if you're not eating the carbs while you pig out on the protein, you're going to be light-headed AND gain weight.