Learn this and teach it. 

I am so accustomed to eating through any need for energy that I have trained my body to crash without it. When studying on intermittent fasting in an effort to protect my teeth from constant food, I learned that the body can be trained to use fat for energy instead of waiting for food. I think that's what ketosis is. I now plan my days that require a lot of energy around two giant meals. One before the event and when after the event, and then fast for 16 hours afterwards to train my body toward ketosis.

That also gives my teeth 16 hours to rest, hydrate, and remineralize from the nutrients I eat. It also gives my receding gums a break from constant brushing.

That also motivates me to pack as many nutrients in those two meals as I can to prevent cravings and energy crashes.

Don't be a sugarburner.