One of the first thing I talk to people about when discussing managing fatigue is cut sugar right back. It’s hard to go sugar free, but not impossible. But cutting sugar is a good way to begin. This is all very well if you know what sugar is. I tell people to read the labels and then I give them a list of the most common disguises sugar uses to sneak into your food.
The following article, from a trusted research source, plainly and excellently lays out the sugars to watch out for.
Well worth a read. Carry a note of the common and uncommon ones in your purse or wallet when you go shopping. Stop letting food manufacturers poison you!