Machine Fuel

I normally work 4 days one week and 6 days the next at my industrial job. It is very intense job. According to my Fitbit watch I burn between 3,200 to 4,000 calories every day I work. Would u suggest the Machine Fuel be beneficial on days I work but do not hit the gym. If so is it better taken am or pm...Curious as to if it be a wste or not.. 

Thanks for your time and your answer

Brice Baughn