Beets are one of the most nutrient-dense root vegetables you can eat, with benefits ranging from lower blood pressure to better exercise performance. They’re rich in naturally occurring nitrates, fiber, and pigments that act as antioxidants, giving them an unusually broad range of health effects for a single food. Here are ten evidence-backed reasons to eat them regularly.
1. Lower Blood Pressure
This is the most well-studied benefit of beets. The nitrates in beets convert to nitric oxide in your body, which relaxes and widens blood vessels. A meta-analysis of 11 clinical trials found that drinking beetroot juice reduced systolic blood pressure (the top number) by an average of 5.31 mmHg in people with hypertension. That effect held up over interventions lasting as long as 90 days, with no sign that the body built up a tolerance to it. The effective daily dose in studies ranged from 200 to 800 mg of dietary nitrate, roughly the amount in one to two cups of beetroot juice.
2. Better Exercise Performance
Beet nitrates improve how efficiently your muscles use oxygen during physical activity. Studies show that beetroot supplementation can delay time to exhaustion, increase power output, and improve efficiency during both moderate and high-intensity exercise. The timing matters: plasma nitrite levels peak about 2.5 hours after you drink beetroot juice and stay near peak values for up to 5 hours. If you’re using beets as a pre-workout boost, drinking the juice two to three hours before exercise gives you the best window.
3. Reduced Inflammation
The deep red pigments in beets, called betalains, have measurable anti-inflammatory effects. In a 12-week clinical trial involving people with type 2 diabetes, daily beetroot juice consumption significantly reduced three key inflammatory markers compared to a control group. Two of those markers, IL-6 and TNF-alpha, play central roles in chronic inflammation linked to heart disease, diabetes complications, and joint pain. While the juice didn’t lower every inflammatory marker tested, the reductions in these specific signals were substantial.
4. Improved Brain Blood Flow
Your brain depends on steady blood flow to function well, and dietary nitrate appears to enhance it. MRI imaging showed that just two days on a high-nitrate diet increased blood flow to brain regions involved in executive function, the mental skills you use for planning, decision-making, and focus. A separate study found that a single dose of beetroot juice improved both blood flow regulation in the brain and performance on cognitive tasks in healthy young adults. In older adults with type 2 diabetes, two weeks of daily beetroot juice improved simple reaction time compared to a placebo.
The cognitive benefits aren’t universal across all measures. Some trials in healthy older adults found no change in memory or rapid processing tasks after short-term supplementation, suggesting the effects may be most noticeable in people whose blood flow is already somewhat compromised.
5. Steadier Blood Sugar Response
Beets may help your body manage blood sugar more efficiently after meals. In a controlled study with healthy volunteers, a beetroot juice beverage significantly blunted the blood sugar spike in the first 30 minutes after consumption compared to a carbohydrate-matched control drink. Even more notable, the insulin response was significantly lower for the first full hour. This means the body needed less insulin to bring blood sugar back to normal, a pattern associated with better long-term metabolic health. The effect was comparable to what researchers have observed with berries, another food known for smoothing out post-meal glucose.
6. Liver Protection
Beets are one of the richest dietary sources of betaine, a compound that supports liver function. Research has identified a specific mechanism through which betaine helps prevent fat from accumulating in liver cells, a condition known as non-alcoholic fatty liver disease. Betaine activates a chain of molecular events that ultimately boosts the expression of a protein involved in fat metabolism, helping the liver break down and clear lipids rather than store them. While much of this research is still in animal and cellular models, betaine’s protective role in liver health is one of the more promising areas of beet nutrition.
7. Digestive Support
A one-cup serving of cooked beets provides about 3.4 grams of fiber, a mix of soluble and insoluble types that supports regularity and feeds beneficial gut bacteria. Beyond fiber alone, the combination of betalains, polyphenols, nitrate, and fiber in beets appears to have a prebiotic effect, meaning it influences the composition and activity of gut microbes in ways that can benefit your immune system and metabolism. The specific impact depends on the type and amount of fiber consumed, and gut bacteria respond differently to beet fiber than to fiber from other sources.
8. Rich Antioxidant Content
The vivid color of beets comes from betalain pigments, which function as potent antioxidants. These compounds neutralize reactive molecules that damage cells and contribute to aging and chronic disease. Beets also contain polyphenols, another class of plant antioxidants. Together, these compounds give beets a high total antioxidant capacity. Notably, betalains are relatively rare in the food supply. While you can get polyphenols from dozens of fruits and vegetables, beets are one of the few common foods that deliver betalains in meaningful amounts.
9. A Dense Nutritional Package
Beyond their headline compounds, beets deliver a broad range of essential minerals including potassium, magnesium, phosphorus, calcium, iron, zinc, copper, and manganese. Potassium is especially relevant because it works alongside sodium to regulate blood pressure, amplifying the benefit beets already provide through their nitrate content. Beets also supply folate, a B vitamin critical for cell division and DNA repair. For the calorie cost of roughly 60 calories per cup, beets pack an unusually diverse nutritional profile.
10. Versatile and Easy to Prepare
How you prepare beets affects how much of their beneficial compounds you retain. Boiling is the most common method, but it also causes the greatest nutrient loss. Research on vegetables shows that boiling can reduce nitrate content by 47 to 59 percent, since nitrates are water-soluble and leach into the cooking water. Roasting, steaming, and eating beets raw preserve significantly more of their nitrates and antioxidants. Flash-freezing also retains most of the nitrate content, making frozen beets a solid option. If you do boil beets, using the cooking liquid in soups or sauces recaptures some of what’s lost.
Side Effects Worth Knowing About
Beets are safe for most people, but they come with a couple of quirks. The most visible one is beeturia, where your urine or stool turns pink or red after eating beets. This happens to 10 to 14 percent of the general population and is harmless, though it can be startling if you’re not expecting it. The rate jumps to about 45 percent in people with pernicious anemia, and it’s more common in anyone who is iron deficient, since the body absorbs more of the red pigment when iron absorption in the gut is elevated.
The more significant concern involves kidney stones. Beets are high in oxalates, compounds that bind with calcium in the urinary tract to form calcium oxalate stones, the most common type. Clinical guidelines for kidney stone patients specifically list beets among foods to avoid. If you’ve had calcium oxalate stones or your urinary oxalate levels are above 25 mg per day, limiting beet intake is a practical step. Pairing beets with calcium-rich foods can help, since calcium binds oxalate in the gut before it reaches the kidneys.