calorie

No sugar for me, thanks.

These things contribute a lot to a calorie deficit.

In these circumstances, animals are neither constrained to get the last calorie out of their diet nor is energy conservation a high priority.

You can also find some charts listing fat and calorie content for different types of seafood, meat and the other major food groups.

An estimate of the basic level of sustenance then necessary for human survival has been judged at 2200 calories per day.

Caloric? Like calories in the food we eat. 

Exactly! We are talking about the sugars, carbohydrates, fats that our bodies burn to get energy which we measure in calories.

He gave each mouse in one group thirty percent less food, or more precisely, thirty percent fewer calories than the mice in the other group which ate a normal amount.

These monkeys, two groups of them, were given all the vitamins and minerals and other nutrients they needed, except that one group got thirty percent fewer calories.

The expected drop in naive T-cells, apparently the shock of getting thirty percent fewer calories really slows that down.

The answer lies apparently not in the increased energy costs of exaggerated begging—such energy costs are small relative to the potential gain in calories—but rather in the damage that any successful cheater would do to its siblings, which share genes with one another.