Burning the Fat From Food

Question
How long after eating does the body complety burn the carlories/far from the meal?  In other words for example if I at the cake two days ago and still maintained my weight can I still gain weight from that cake?  I hope this makes sense.

Answer
Steven,

In your example, nobody can tell, which fat is to be burnt in two days after eating the cake. The matter is, this is not as simple as the school explanation of "calorie in -- calorie out" with the tub model: water is coming in from the tap and goes out through the drain. If it were that simple, you might expect that, since you haven't gained weight, the cake calories were burnt.

In reality, many more things also matter: cake's sweetness intensity, cake's nutrient ratio, foods you ate during the two days and their nutrient ratios, even the type of your exercise -- weight lifting, endurance, high intensity intervals, low intensity, etc. It would take a few long article to explain details but one short answer can be:

Theoretically, you can still gain weight from that cake if its sweet taste and high carbohydrate content caused your increased appetite causing eating more OTHER foods causing positive calorie balance causing excess calories deposition as body fat.

Reading:

Calories on diets (scroll down to the discussion and read "what we count when we think we
count calories")
http://www.dietandbody.com/articles/article1100.html

The Food-insulin Link (nutrient ratio of foods)
http://dietandbody.com/metabolic_syndrome//?page_id=8

About sweet taste and calorie intake
http://www.dietandbody.com/article1082.html

= TZ

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