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What Are the Effects of Beetroot on the Body?

5 min read

According to a 2022 review, beetroot juice significantly reduced systolic blood pressure in people with hypertension. This vibrant root vegetable is hailed as a superfood, but what are the effects of beetroot on the body, both positive and negative? Let's delve into the science-backed benefits and potential side effects.

Quick Summary

Explore the profound health impacts of beetroot, from its proven ability to lower blood pressure and enhance athletic stamina to its role in aiding digestion and fighting inflammation.

Key Points

  • Cardiovascular Support: Beetroot's high nitrate content is converted to nitric oxide, which relaxes and widens blood vessels, effectively lowering blood pressure.

  • Enhanced Exercise Performance: The nitrates in beetroot improve oxygen efficiency during physical activity, increasing stamina and endurance for athletes.

  • Powerful Anti-Inflammatory: Betalains, the pigments giving beets their vibrant color, possess strong anti-inflammatory properties that may help combat chronic inflammation.

  • Digestive Aid: Rich in fiber, beetroot supports a healthy digestive system by promoting regularity and feeding beneficial gut bacteria.

  • Brain Function: Increased blood flow to the brain, particularly the frontal lobe, is a result of beetroot's nitrate content, which may support cognitive function and memory.

  • Potential Side Effects: Some individuals may experience beeturia (reddish urine/stools) or digestive discomfort due to FODMAPs, though these are typically harmless.

  • Kidney Stone Risk: Due to its oxalate content, beetroot should be consumed in moderation by individuals prone to calcium oxalate kidney stones.

In This Article

The Positive Effects of Beetroot

Improved Cardiovascular Health

One of the most well-documented effects of beetroot consumption is its positive impact on heart health, particularly its ability to lower blood pressure. This is due to its high concentration of nitrates. When consumed, these nitrates are converted into nitric oxide by the body. Nitric oxide is a signaling molecule that causes blood vessels to relax and dilate, allowing for better blood flow and, consequently, lower blood pressure. The effects can be significant, with some studies showing a drop in blood pressure within hours of consumption. Consistent, regular intake is recommended to maintain these long-term heart-healthy benefits. Beyond lowering pressure, research suggests that dietary nitrate can also prevent the re-blocking of coronary arteries after procedures like angioplasty. The cardiovascular benefits are especially pronounced for individuals with pre-existing hypertension or those at risk for heart disease.

Enhanced Athletic Performance

For athletes and fitness enthusiasts, beetroot offers a natural performance boost. By increasing nitric oxide levels, the nitrates in beetroot improve the efficiency of mitochondria, the energy-producing powerhouses within cells. This reduces the amount of oxygen required for physical exercise and can increase stamina, boost endurance, and improve overall athletic performance. For maximum effect, experts recommend consuming beetroot or its juice a couple of hours before training or competing, as blood nitrate levels peak within this timeframe.

Potent Anti-inflammatory Properties

Beetroot contains powerful pigments called betalains, which are responsible for its rich red and yellow colors. These compounds have notable anti-inflammatory properties, which can help combat chronic inflammation associated with various health conditions like heart disease, liver disease, and obesity. Studies have shown that betalain capsules made from beetroot extract can reduce pain and discomfort in individuals with osteoarthritis, indicating its potential to alleviate symptoms of inflammatory conditions.

Benefits for Digestive Health

Beetroot is an excellent source of dietary fiber, which is crucial for a healthy digestive system. The fiber aids in promoting regular bowel movements and adds bulk to stools, which can help prevent constipation and other digestive issues. Fiber also acts as a prebiotic, feeding the friendly bacteria in your gut, which is essential for overall digestive health and a balanced gut microbiome. For more detailed nutritional facts, you can visit Healthline's article on Beetroot.

Support for Brain Function

As mentioned earlier, the nitrates in beetroot increase nitric oxide production, which enhances blood flow throughout the body, including to the brain. This improved blood circulation has been shown to particularly benefit the frontal lobe, the region responsible for higher-level thinking, decision-making, and working memory. While more research is needed, this effect may help slow the age-related decline of mental and cognitive functions and potentially reduce the risk of neurodegenerative disorders.

The Negative Effects and Risks of Beetroot

Harmless but Alarming Side Effects

Perhaps the most common and visible effect of eating beetroot is beeturia, a harmless condition that causes pink or red-colored urine and/or stools. While startling to some, this phenomenon is caused by the betalain pigments and is not a cause for medical concern.

Concerns for Kidney Stones

Beetroot, particularly its greens, contains high levels of oxalates, natural compounds that can contribute to the formation of kidney stones. Individuals who are prone to developing calcium oxalate kidney stones should monitor their intake of high-oxalate foods, including beetroot.

Digestive Discomfort

For some sensitive individuals, such as those with Irritable Bowel Syndrome (IBS), the fructans in beetroot—a type of short-chain carbohydrate known as a FODMAP—can cause digestive upset. Symptoms may include bloating, gas, and stomach pain.

Cautions for Certain Individuals

Because beetroot has a potent blood-pressure-lowering effect, those with naturally low blood pressure should exercise caution and monitor their levels when consuming it regularly. Similarly, individuals on medication for high blood pressure should consult with a doctor, as the additive effects could lead to blood pressure dropping too low.

Beetroot vs. Beetroot Powder: A Comparison

Feature Fresh Beetroot Beetroot Powder
Nitrate Concentration High (especially in juice, less so when boiled) High (concentrated)
Convenience Requires preparation (peeling, chopping, cooking) Easy to add to smoothies, sauces, or drinks
Fiber Content High (contains whole vegetable fiber) Lower (fiber may be partially removed in processing)
Nutrient Preservation Vitamins, especially C, can be lost during boiling or juicing Nutrients are retained through dehydration, but depends on process
Oxalate Content Present in both root and greens, especially high in greens Present, as it's concentrated from the root
Versatility Can be roasted, boiled, steamed, or eaten raw Can be blended or mixed into various recipes

How to Incorporate Beetroot into Your Diet

There are numerous ways to add beetroot to your meals to reap its health benefits:

  • Roasted: Roasting brings out the natural sweetness of beets. Toss cubes with olive oil, salt, and pepper and roast until tender.
  • Juiced: For a concentrated dose of nitrates, juice fresh beets. Combine with other fruits like apples and ginger for a delicious and potent blend.
  • Raw and Shredded: Grate raw beetroot and add it to salads or sandwiches for a crunchy, earthy texture and a nutritional boost.
  • Smoothies: A spoonful of beetroot powder can be easily added to your morning smoothie for a quick and convenient intake of its beneficial compounds.
  • Pickled: Pickled beets offer a tangy flavor and can be enjoyed year-round, adding a vibrant color to any dish.

Conclusion

Beetroot is a highly nutritious and versatile vegetable with a range of scientifically-backed effects on the body. Its high nitrate content is particularly beneficial for improving cardiovascular health by lowering blood pressure and enhancing athletic performance by boosting oxygen efficiency. Additionally, its anti-inflammatory properties, digestive health benefits, and potential support for brain function make it a valuable addition to a balanced diet. However, it is essential to be aware of the potential side effects, such as beeturia, the high oxalate content that may concern those with a history of kidney stones, and the possibility of digestive upset for sensitive individuals. While generally safe, caution is advised for people with low blood pressure or those taking specific medications. By incorporating beetroot into your diet in moderation, you can leverage its powerful health-promoting properties. When in doubt about significant dietary changes, especially with underlying health conditions, it's always best to consult a healthcare professional.

Frequently Asked Questions

The main benefit of eating beetroot comes from its high nitrate content, which converts to nitric oxide in the body. This helps relax and dilate blood vessels, which in turn lowers blood pressure and can significantly improve athletic performance.

This phenomenon, known as beeturia, is a harmless side effect caused by the betalain pigments in beetroot. It is not a cause for medical concern and only affects a small percentage of people.

For most healthy individuals, eating beetroot every day in moderation is safe. However, it is always recommended to have a varied diet. People with specific conditions, such as a history of kidney stones or low blood pressure, should be mindful of their intake.

Yes, beetroot is an excellent source of dietary fiber, which is crucial for promoting regular bowel movements and supporting overall digestive health by feeding good gut bacteria.

Potential downsides include digestive discomfort for sensitive individuals due to FODMAPs and a higher risk of kidney stone formation for susceptible people because of its oxalate content.

The blood-pressure-lowering effects of nitrates can often be observed within a few hours of consumption. For sustained benefits, regular intake over time is needed.

It is important to consult a doctor, as beetroot's blood-pressure-lowering effect could be additive to medication. Regular consumption might cause blood pressure to drop too low for individuals on certain medications.

Some studies have shown that certain compounds in beetroot, like the antioxidant betalain, can have cancer-fighting properties in test-tube studies. However, more human research is needed to confirm this potential link.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.