Goldstein is one of very few people who has tested his own tongue scrapings, urine, feces, even perspiration during a water fast, Strychacz says.
Don’t let a four-day holiday interfere with your attempts when you’re learning how to get in shape. I don’t mean that you need to follow your diet and exercise plan without any excursion, but when you are in the first few weeks, still forming habits, be careful that a week long break doesn’t terminate your progress. When you expect a plateau, you can manage around it so you can continue your progress at a more realistic rate. When expectations meet reality, you can avoid dietary crashes.