Macronutirent. Basically it means one of either fat, protein or carbohydrate. Many diets will have you set a calorie goal, and then suggest a guideline what percentage of your calorie intake should come from each macronutrient group.

basically, protein/fat/carbs. see this -http://www.kentmccannfitness.com/2013/02/12/what-are-macronu...

I'm guessing macro-nutrients from the context: protein, carbs, fat.

Preprocessor, hygienic, nutritional, or excel?