So I was at class, Fire Academy, last night and I had someone ask me what the definiton of a calorie is. By definition, per Wikipedia, it is:
The calorie is a pre-SI metric unit of energy. The unit was first defined by Professor Nicolas Clément in 1824 as a unit of heat. This definition entered French and English dictionaries between 1841 and 1867. In most fields its use is archaic, having been replaced by the SI unit of energy, the joule. However, in many countries it remains in common use as a unit of food energy.
So, with that said he asks "So how does one determine what good calories or bad calories are? Techinically, there is no such thing, correct?"
I was unsure how to respond. Then he follows up with "And they say to lose weight you need to watch your calorie intake but if calories, by definition, are the source of energy, how can one have enough energy to burn calories if they limit their intake?"
Now these, for some, may be easy questions, but I found it interesting how he presented them. What are other peoples takes on this?