Health benefits As vegetables go, beetroot is a fairly unspectacular source of vitamins and minerals. (Not that this matters. See kale.) Yet, like many vegetables, it is rich in nitrates, which somehow manage to make it a superfood, a sports supplement and a health scare, all at the same time. The good part is that beetroot juice does seem to lower blood pressure, a little, probably because of the nitric oxides that your body converts nitrates into. In practice, this is is not much use, however. If your blood pressure needs to be lowered, you are much better off doing exercise, eating less salt and taking the drugs your doctor gives you. Other research suggests that drinking beetroot juice before exercise improves the endurance of casual athletes by allowing more oxygen to be delivered around the body (but has little effect on serious ones). When added to red meat, however, nitrates worry people, as they form nitrosamines, and do lead to an increased risk of bowel cancer (from about a 5.6% lifetime risk in people who eat almost none, up to about 6.6% in people who eat lots). It is possible that the nitrates in beetroot could also form nitrosamines in your body, so Efsa recommends eating no more than about two beetroots a day.
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