1) Why is eating "thermic meals" so important?
I mentioned the term “thermic effect” of eating in past issues of Get Lean! but now I want to explain exactly what that means and what you can do to take advantage of it. If you have ever said, “I’m stuck with a slow metabolism,” you need to pay close attention. Believe it or not, there are many ways you can make your metabolism slower or faster. In other words, you are the creator of your present metabolism and can change it for better or for worse.
To lose weight, you need to have what is called a negative energy balance. That means that your calorie intake is less than your expenditure. That is true but there is more to the fat-loss puzzle than that.
Three factors that will have an impact on your energy expenditure are your RMR (resting metabolic rate), calorie cost of activity, and the thermic effect of food.
Resting metabolic rate is the amount of calories you will burn at rest.
Calorie cost of activity is the amount of calories you will burn throughout the day performing various activities (walking, getting out of a chair, playing a game of rugby, etc.).
The thermic effect of food is the amount of calories you burn while eating. Just like any other activity you perform, you burn calories while eating. Your body has to digest and absorb whatever it is that you’re putting in your mouth. All foods are not equal and “you are what you eat” may be true. Fats are relatively easy for the body to handle so there are few calories burned in the fat consumption process. Refined sugars have been processed by machines so there isn’t a lot of work left for the body to do with them.
On the other hand, complex carbohydrates and especially lean protein have a high thermic effect. Protein has a 20-25% metabolic boost compared to only 5% for fat. That is a lot of calories over time (days, weeks, months, years, decades). Your best bet would be to eat five or six small balanced meals per day containing some lean protein, some complex carbs, and some fibrous veggies.
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