Nitric Oxide
I recently had a negative response to a supplement recommended to me called Arginine. Apparently, Herpes Simplex (a virus that causes cold sores and shingles) thrives on Arginine. I had a break our of cold sores, so I stopped it immediately. I was using it to increase nitric acid to allay muscle cramps in my legs. You may want to look at your dietary supplements, it was in 2 other ones I was taking. I stopped the intake and cleared up my mouth sores within 24 hours.
Read more: https://www.webmd.com/vitamins/ai/ingredientmono-875/l-arginine
Arginine is an amino acid that the body converts into nitric oxide (NO), a neurotransmitter that helps blood vessels relax and improves circulation. This means increasing energy production at the cellular level. NO also plays a role in cellular function and how the body responds to insulin. We need NO to be healthy.
If you are low on energy, rather than take a supplement, perhaps you could add a few of these foods to your diet, and see if it helps. Food is medicine!
https://www.webmd.com/diet/healthy-foods-nitric-oxide
Certain foods will increase NO and it's effects
1. Beets, spinach, celery, arugula, carrots, parsley, cbbage, radishes, collard.
2. Grape seed extract or oil
3. Vit C and Garlic (fresh, raw or cooked)
4. Exercise throughout the day
5. Sunlight
6. Ginseng
7. Toss out mouthwash
8. Laughter
9. Coffee
10. Cacao