6. Walnuts
Walnuts are filled with Vitamin E and are also helpful in boosting testosterone levels in the body. It also targets high blood pressure and lowers cholesterol in the blood. The reason why it has high amounts of nitrates is because of the L-Arginine in which walnuts are rich of.
7. Celery
The amount of nitrate you can get from celery can go upwards of 250mg per 100 grams. This varies depending on the type of fertilizer used and the quality of soil in which it was planted. The nitrate content goes lower if you prefer processed versions of the raw celery or if too much insecticide was used in the process.
