Does anyone know a website that shows Carb, Fat or Protein of certain foods (ex. Harvarti Cheese) in case the food product doesn't contain the information?

www.nutritiondata.com but it probably won't have your cheese.

Your best bet is to go to a website if it's listed on the packaging or call the company. Usually, there's a number listed on the packaging even if there is no website listed.

Does anyone know a website that shows Carb, Fat or Protein of certain foods (ex. Harvarti Cheese) in case the food product doesn't contain the information?

You can google, an easy quick information provider. That what I did.

http://www.saralee.com/saralee-assets/pdf/products/nutritionalinfo/Havarti_Cheese40313.pdf