Yes, I was thinking in the way of radicalbyte's comment and I take the dry values of carb sources which indeed reverses the ranking. But even with beef, it tak

Yes, I was thinking in the way of radicalbyte's comment and I take the dry values of carb sources which indeed reverses the ranking. But even with beef, it takes 800g to reach 2000kcal[1]. I am just wondering if this can actually be the main source of energy for a long period of time. [1] https://en.wikipedia.org/wiki/Beef https://en.wikipedia.org/wiki/Beef beef: 1,047 kJ (250 kcal) per 100g