3 ms·

What is your source on this?

• docandrew 4y ago
  It’s pretty common knowledge. Unless you have diarrhea or something, your body will use up just about everything that you eat. https://cathe.com/do-you-absorb-all-of-the-calories-you-eat/ https://cathe.com/do-you-absorb-all-of-the-calories-you-eat/ A textbook I saw said in terms of _mechanical_ efficiency, we get about 25% at converting calories to mechanical work, which beats an internal combustion engine!
  • librish 4y ago
    Isn't your own linked thing contradicting you? "The Bottom Line The calculated number of calories in a food or meal assumes you’re able to digest and absorb all of the macronutrients, which is seldom the case. You likely take in fewer calories when you eat whole foods, foods high in fiber and resistant starch, and foods that are uncooked and haven’t been exposed to heat. Now you have another reason to add more whole, unprocessed foods to your diet."