The master himself! Yes, I understand that that I must be in a caloric deficit. I also understand that if i eat something with higher fat content it will therefore mean more calories because fat has 9 calories per gram I believe it is.
I'm sorry I don't believe that about sugar becuase of insulin spike can promote fat storage..
wiggs, more fat equals less fat burning. your very true in the first one. and why? yoru also correct its because it has calories.

sugar, and all carbohydrates(besides fructose) cause increase in blood glucose, which causes the pancrease to release insulin, insulin is a storeage/growth hormone that lowers blood glucose back to normal levels after eating carbohydrates. insulin, while active, turns off fat burning, and if there isnt enough room in muscle tissue for the total glucose that youve eaten, then insulin can push some glucose into fat as well.
now, insulin rarely ever causes fat gain unless its accompanied by moderate or high fat intake. this is because fat can not be stored any where in any for, except for as fat. when the only available energy is glucose, insulin does not make one fat, eating a surplus of calories does.
now, with that being said...it may appear that fat and carbs woudl then be interchangeable... but its not the case, with fat being easier to digest and requiring less energy for the digestion process, and with fat having a very low "burn off" effect when over eaten, and with the fact that fat is stored very easily as body fat for a plethora of reasons...namely:it ALREADY is fat..(no conversion necessary)
carbs are far superior to fat...regardless wether trying to get big or get lean... eat adequate protein, essential fats, and then fill in the rest of calorie intake with as much glucose as possible.