we've come a long way from a calorie is a calorie.
Most people understand now that a 250-calorie Snickers bar is going to metabolize differently in the body than 250-calories of chicken.
But is the opposite true: all calories are NOT created equal?
Is 250 calories the same amount of energy regardless of the food source?
Not surprisingly, there is more to this conversation.
Here's what real nutrition science affirms instead that combines the two philosophies:
Not all calories macronutrients are created equal.
In other words, calories from different macronutrients (proteins, carbohydrates, and fats) have different effects on fullness, insulin response, the process of turning carbs to body fat, and metabolic energy expenditure.
Taken a step further, calories from macronutrients with different levels of food processing (i.e. organic whole foods vs. highly processed, highly palatable foods) also...