In a word, yes.

For example, I used to eat 25 grams of fat a day, I exercised every day, I weighed 145, and I was a size 12.

Now, I eat 125 grams of fat a day, I live on the third floor, I weigh 147, and I'm a size 10.

That's pretty persuasive math to me. Oh, but is all that fat GOOD for me? My skin has never looked better, my blood pressure is now optimum, and I sleep 2 hours less a night, without any mid-afternoon slump.

Your body needs something to burn. You aren't giving it carbs, you aren't giving it fat. That only leaves protein, and it's a scientific fact that it doesn't work well. Native Americans used the term "rabbit sickness" to describe what happened when they ate a lot of lean meat without enough fat. You are doing yourself no favors.

There are a number of threads on here about fear of fat you could read, with good comments. So I'll just remind you that Dr. Atkins stated in his book that low fat AND low carb doesn't work.