The best replacement for carbs is calories.

The best alternatives to carbs are rated as following:
★★★★★  calories
★★★★  protein
★★★★  fat
★★★★  net carbs
★★★  sugar
★  fiber
★  complex carbs
★  bad carbs
★  no carbs
★  lipids
  slow carbs
  carbs
  simple carbs
  total carbs
  proteins
  fast carbs
  protein after workout
  glycemic index
  active carbs
  fat bodybuilding
  meat
  good carbs
  calories weight gain
  protein diet
  insulin
  sodium
  protein after a workout
  fats
  starch
  dietary fiber
  sugars
  complex
  protein post workout
  protein energy
  sugar what is worse
  bad

Your alternative for carbs is not listed? Suggest!
Speaking about carbs, one probably shouldn't forget about protein.

Other search terms related to carbs and their ratings are:
★★★★★ protein
★★★★ fat
★★★★ sugar
★★★★ fiber
★★ calories
★★ protein shake
★★ grains
★★ dinner
★ low fat
★ high fiber
★ bread
low calories
pasta
meat
creatine
You have in mind a companion for carbs and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of carbs in all years. Click on graph for more.
carbs
calories
protein