In so far as fat is how the body stores excess calories, if those calories came in as carbs, it is.I laugh at the fat being a kind of carb.
Spector says: "Again, the problem is our eagerness to oversimplify. 'Carbohydrates' is an overused umbrella term that scientifically includes all types of sugar, starch and fibre found in plants. Each of these three carb groups has very different effects on the body, but we foolishly lump them together. Studies and experts are highly divided on whether eating high carbohydrate diets (which also means low fat) are good or bad for you. Most US-led guidelines recommend higher carb intakes. But the large PURE study of 18 populations in 5 continents showed the opposite effect on mortality." p. xviBut I have no doubt currant knowledge is off too.