Probably not a news flash, or maybe it is, but tis 100% true! If you struggle with your body not losing fat and being low on energy I strongly recommend eliminating or restricting grain consumption (yes all types of grain "foods"), dairy, night shade family foods, and of course sugars.
What to eat? Good question! High fats (all kinds except trans-fat) such as raw nuts/seeds, 80% dark chocolate, avocado, coconut oil, pasture butter, etc. as well as proteins, minimal fruit, and as many leafy greens and root (just not nightshade potatoes) vegetables as you want.
Alongside what to eat is also what to drink. My recommendation is to drink at least half your body weight in ounces of water every day. When you exercise drink a lot of water during your workout and do not count that in your daily totals.
NEVER DRINK fruit juices of any kind or dairy drinks.
Eliminate or restrict anything and every drink with caffeine as it will drain your adrenal glands and send you on a roller coaster ride of energy levels up and downs.
Try to eat little during the day, just enough to sustain you, but not cause too high of an insulin spike. That is caused by carbohydrates being consumed. Simple carbs are sugar types and complex carbs are starchy, vegetables, and grains (as mentioned- eliminate or restrict all grain type foods).
Use good nutrition, water, regular, consistent exercise & sleep as your source of ongoing, thriving energy. That is the secret. Yes it is rather general and there are people who have certain issues needing things tweaked for them; however the better part of the population majority will greatly benefit by practicing what I recommend here.
Best of luck and keep me posted with your questions and comments. I love hearing from you! :)