Written by Kathleen M. Zelman, RD, LD, MPH
Medically Reviewed by Dan Brennan, MD on March 17, 2022
Beet juice may boost stamina to help you exercise longer, improve blood flow, and help lower blood pressure, some research shows.
Why? Beets are rich in natural chemicals called nitrates. Through a chain reaction, your body changes nitrates into nitric oxide, which helps with blood flow and blood pressure.
Nitric oxide plays a major role in the dilation of blood vessels thus increasing blood flow It is also vital for maintaining healthy blood pressure and platelet function.
Nitric oxide production in the body decreases with age. Low levels are associated with heart disease, cognitive decline, and dementia. This can result in endothelial dysfunction (inner walls of arteries). The vessels cannot dilate properly or widen, leading to or increasing blood pressure and sometimes atherosclerosis, heart attacks, abnormal clotting, strokes and sudden cardiac death.
Beet Juice Nutrition
One cup of raw beets has 58 calories and 13 grams of carbohydrates. A cup of beet juice is usually around 100 calories and 25 grams of carbohydrates.
Beets are good sources of folate, potassium, vitamin C, fiber, and antioxidants, as well as nitrates.
Other good food sources of nitrates include spinach, radishes, lettuce, celery, and Chinese cabbage.
Raw or cooked beetroot offers about 8–10% carbs.
Simple sugars — such as glucose and fructose — make up 70% and 80% of the carbs in raw and cooked beetroots, respectively.
Beetroots are also a source of fructans — short-chain carbs classified as FODMAPs. Some people cannot digest FODMAPs, causing unpleasant digestive symptoms.
Beetroots have a glycemic index (GI) score of 61, which is considered medium. The GI is a measure of how fast blood sugar levels rise after a meal.
On the other hand, the glycemic load of beetroots is only 5, which is very low.
This means that beetroots should not have a major effect on blood sugar levels because the total carb amount in each serving is low.
Beetroots are high in fiber, providing about 2–3 grams in each 3/4-cup (100-gram) raw serving.
Dietary fiber is important as part of a healthy diet and linked to a reduced risk of various diseases .