The short answer is “no.” Consuming calories early in the morning doesn’t magically make you burn those calories off faster (you need physical activity for that!). And in general, eating calories to burn calories is not a recipe you want to follow if your goal is losing body fat. So, if you’re not a big breakfast eater, no need to worry. Your total caloric/macronutrient intake across a 24-hour period is of far greater importance.
However, there are some general rules related to breakfast and the metabolism, and it revolves less around WHEN you eat breakfast, and more about WHAT you eat.
If you want to start your day off with metabolically beneficial nutrition, there are two basic rules:
- Protein, protein, and more PROTEIN!!
Like I said earlier, eating more calories in attempt to burn more is not a good idea. However, our bodies do expend energy during the digestion process. This is called the Thermic Effect of Food (TEF) or Diet Induced Thermogenesis (DIT), and different foods have different TEF values. Generally, TEF/DIT is estimated to represent 10% of the total caloric intake one ingests over a 24-hour period. However, the TEF/DIT of protein is between 20-30%.1 This means that the metabolic response your body elicits will be higher if you eat a high-protein breakfast. This is true no matter what time of the day you eat, but if our goal is to kickstart the metabolism first thing in the morning, then it should begin with a high-protein breakfast!
Additionally, protein promotes the building/maintaining of lean mass, which benefits the metabolism by increasing one’s basal metabolic rate (BMR). You can read more about that HERE.
- Avoid Sugary Foods
The other thing that can have a big effect on your metabolism is blood sugar. Spikes in blood glucose are generally followed by a drop/crash, which will leave you feeling lethargic. And any time your energy drops like that, energy production (and thus metabolism) is going to slow down big time.
And adding to the above point, consumption of protein in conjunction with carbohydrates will decrease the spike in blood glucose that follows a meal, as opposed to when consuming carbohydrates alone.2 This means that a protein-rich breakfast will lead to higher/more consistent energy levels throughout the day. Whereas, smashing a big stack of pancakes could leave you dragging and needing another cup of coffee by 10am.
A high protein breakfast is a great way to kickstart your metabolism first thing in the morning. However, don’t get wrapped around the axle when it comes to the timing of meals. Managing the total intake during a 24-hour period is the most important aspect of a great nutrition plan.
2. Diabetes Care 1984 Sep; 7(5): 465-470.https://doi.org/10.2337/diacare.7.5.465