The best source of data of your current diet is D.) A food journal
Your memory can become mistaken, your friend's opinions may not be valid, and how would the internet know what you ate. These are not reliable sources. If you wrote done what you ate, you can easily refer back to your diet and the benefits it may have had.
Sometimes in order to determine which energy bars have the most protein it depends on the company sometimes you can find it on the front or back of the wrapper it overall it would be the back of the wrapper
