Posted by pacifictonz under
Myth Busters,
Nutrition 1 Comment
This was really an important aspect for me to understand, it makes a big difference to my choices, it is why my eating plan needs to be more than counting the calories (or kilojoules) in and out.
As a base mathematical fact then yes all calories are the same, it is a unit of heat, or to the human body the ‘credits’ it has to spend on keeping itself running through the day. If one day it gets more credits than it spends it saves them, storing them as fat to be broken down and spent the next day. This is really efficient, unless of course you keep putting in more than you need on a day by day basis.
Even at that base level though there are differences between eating for example 100 calories of sugar vs 100 calories of spinach. When you consume the sugar it is a very efficient way of consuming the calories, they are available to use by the body virtually immediately and take virtually no effort or energy for the body to utilise from their original form. The spinach on the other hand is a much larger serve, consuming it will take longer and because it is fibrous the body needs to work quite hard to extract the energy and other nutrients from it. Of the 100 calories some will be used just getting it to a usable state within the body, so its net value in calories is a little less. This distinction is important, sometimes your body needs instant energy, for example endurance athletes spend a lot of time planning this, in everyday life for most people though the opposite is true, we want fuel that will be broken down and available evenly over an extended period of time.
The other important difference is the value of the nutrition coming from the calorie. The sugar, along with many processed and treat foods, are sometimes referred to as empty calories. This term is perhaps not entirely correct, their calories are fine they provide the energy they promise but not much more, they often lack significant degrees of vitamins, minerals and proteins that the body requires to function at its optimum and keep doing so into the future.
The upshot is that all calories do not have equal advantage or disadvantage to our bodies, therefore we need to be clear what we are trying to achieve at a particular point in time. Personally in my life there is no genuine requirement for high glycemic or quick release calories on most days of the year – which is why I am now focusing on finding an eating plan for feeding my body what it needs to be strong and healthy.