Zitat Zitat von superflat
Nun ich kenne mich nur mit Diäten aus, die ich selber probiert habe: Low Carb Diät, Low Fat Diät, zudem meine Döner, Milka und Bier Diät. Die Döner, Milka und Bier Diät hatte im Winter die "gewünschte" Wirkung mit einem Fettanstieg um 4% .

Hier noch eine etwas wissenschaftlichere Antwort, die Dir genügen dürfte:

Why a calorie is not just a calorie
One misconception about fat loss is the conservative scientific view that "a calorie is just a calorie" and the only thing that matters is calories in versus calories out. If fat loss were that simple, then you could eat anything you wanted and you would still lose fat as long as your calories were below maintenance. For example, you could eat nothing but Hershey's bars and drink nothing but Coca Cola and if you were 100 calories under maintenance, you'd lose weight. Common sense alone tells you this isn't true.
If a calorie is just a calorie, then three diets at the same calorie level, the first composed of 100% protein, the second 100% carbohydrates and the third 100% fats, would all have the same effect on body composition. Believe me, a diet consisting of 100% tuna fish (lean protein) will not have the same effect as a diet consisting of 100% potato chips (fat and carbohydrate).
Calorie balance is the most important issue in fat loss but there's more to it than that. Other variables include the thermic effect of food, the effect of each food on hormones and blood sugar levels and the macronutrient ratios of each meal.

The 12 worst fat-storing foods you should never eat
X Ice cream
X Fried foods
X Doughnuts and pastries
X Candy, chocolate & sweets
X Soda [Coca Cola e.g.]
X Fruit “drinks” and other sugar-sweetened beverages
X Potato chips
X Bacon, sausage
X White Bread
X Hot dogs, fast food burgers
X Cookies
X Sugary breakfast cereals

aus: Tom Venuto: Feed the muscle, burn the fat. 2003
sicher ist es optimal, nie solche Sachen zu essen, allerdings ist es kein Problem, mal hier und da zuzugreifen...
Wenn ich mir 1800 - 2000 Kalorien an einem Diättag einplane, dann hat hier und da mal ein Snickers (300 kcal) oder ´n Hamburger (McD 200 kcal) Platz. An einem Refeed-Tag trink ich auch schon mal 1 Liter Zucker-Cola....

Gruß