does vegitable juice contain nitrates
Luckily, beetroots are just one of many vegetables and herbs that are high in nitrate. Leafy green vegetables tend to be the top sources of nitrate: 1  High nitrate levels (~100-250 mg/100 g): basil, celeriac, Chinese cabbage, chard, coriander, endive, fennel, kohlrabi, leek, mustard greens, parsley. Nitrate-containing vegetable juice presents a potential risk if stored incorrectly. 2  If the juice gets contaminated by bacteria that can convert nitrate to nitrite, high levels of nitrite could accumulate over time which could potentially be harmful. 3  Nitrate ingestion from dietary sources, such as vegetables, is safe.