Is common to use "high in calories" instead of "high calories"? Is there any expression like "high in calories"?
Excellent question. It is common to use both "high in calories" or "high calories" and you will hear them both as frequently as each other. The meaning of the two is exactly the same. You can think of "high in calories" as an expression the same as you would think of "high calories". There is no real difference in meaning. Ex: A high calorie diet is not healthy. = A diet that is high in calories is not healthy. Ex: This cake is high in calories. = This cake has high calories.