Last week we discussed if you should track calories. This week, we review why the “math doesn’t always math.” While a calorie is a unit of energy, the composition of that energy is a bigger factor in your metabolic success.

(Short on time? Click here for The Bottom Line)

At face value, 100 calories of gummy bears and 100 calories of broccoli look equal on a tracker. But the impact on your body is profoundly different:

  • The Gummy: Spikes your insulin (remember our school bus?), leading to fat storage and hunger crashes.
  • The Broccoli: Provides fibre and micronutrients that stabilize your metabolism and keep you full.

Did you know that your body does not actually absorb every calorie you swallow? This is known as bioavailability:

  • Ultra-Processed Foods: “pre-digested” by machines and easily absorbed by your gut (e.g., chocolate bars, chips).
  • Whole Foods: require significant energy to break down. For many of these foods, (e.g. almonds or raw vegetables) a portion of the calories pass right through your system, unabsorbed.

If you focus solely on “hitting the numbers,” you risk overriding your body’s innate wisdom. Tracking calories can sometimes feel like it silences your gut (intuition). If your app says you have 200 calories left, but you aren’t hungry, should you eat? If you are ravenous but “over your limit,” should you starve?

Staying educated about health and becoming empowered to make it better means using data to inform your decisions, not override your hunger and fullness signals. Whether for groceries or tracking, the next time you compare calories in foods, remember there is more to the story than just the numbers.

When you optimize for health quality rather than only energy quantity, your body naturally finds its balance.

The Bottom Line

A calorie is a unit of energy, but it isn’t a measure of health. Solely counting calories ignores how food affects your hunger and fullness signals, your hormones and energy, and your long-term metabolic health. Focus on the quality of the fuel first; the quantity tends to take care of itself when you eat real, whole foods.