N/O
People that love Dark Chocolate is because it makes them feel better as they raise their N/O.
Herbs / Foods that enable your arteries / veins to relax and enlarge, will increase health via more blood flow, more Oxygen...
1 Nitric / 1 Oxygen is 1 of the secrets to longevity......the difference between hard arteries verses soft flexible arteries.
When you take an herb/fruit that a minute later you can see your veins in your arms---that is a huge boost of N/O.
If you are a premee or someone dropping down with failed hearth---or 1 of those with male functions---their treatments are N/O. FAST increase of blood flow--saves lives and makes old men think they are young for a few minutes..
GREEN LEAF Vegetables supply the basics for the body to make N/O---Kale being the king.
Otherwise---trees may offer the real deal, so fast, it will scare you with just 1 dropper. What gives Chaga it's qualities is just 1 source....