Beetroot is a low-calorie, nutrient-dense vegetable that fits well into a weight loss diet, but it’s not a fat burner on its own. A systematic review and meta-analysis published in the British Journal of Nutrition found that beetroot and nitrate supplementation did not significantly change BMI, waist circumference, or body fat percentage across clinical trials. The researchers concluded that most claims about beetroot’s direct weight loss benefits are not supported by clear scientific data. That said, beetroot has real properties that support a weight loss plan when you use it strategically.
Why Beetroot Works in a Weight Loss Diet
Raw beetroot contains about 43 calories per 100 grams, which makes it one of the lowest-calorie vegetables you can eat in volume. It has a glycemic load of only 5, meaning it raises blood sugar very little despite having a medium glycemic index of 64 when boiled. That low glycemic load matters more for your daily eating because it reflects the actual amount of carbohydrate in a typical serving, not just how fast it digests.
The real value of beetroot for weight loss is displacement. When you fill part of your plate with a bulky, low-calorie vegetable, you eat less of higher-calorie foods without feeling deprived. A cup of diced raw beets adds color, crunch, and volume to a meal for minimal calories, and the fiber in whole beetroot slows digestion enough to keep you feeling full longer.
How Beetroot Supports Exercise Performance
Where beetroot genuinely shines is helping you exercise harder, which indirectly supports weight loss. Beetroot is one of the richest dietary sources of inorganic nitrates, compounds your body converts into nitric oxide. Nitric oxide widens blood vessels, improves blood flow to working muscles, and interacts with your mitochondria (the energy-producing structures in your cells) to make physical activity feel less effortful. These effects are especially pronounced during intense or sustained exercise, when muscles are working hard and oxygen is in higher demand.
If you can push a little harder during a workout or sustain effort a few minutes longer, you burn more calories over time. That’s the practical link between beetroot and weight loss: not a direct metabolic shortcut, but a performance edge that helps you get more out of your training.
Best Forms for Weight Loss
The form you choose matters, and the differences are bigger than you might expect.
- Whole raw or roasted beetroot is the best option for weight loss. You get the fiber, the volume, and the full nutrient profile. Fiber is what keeps you full, and it’s absent from juice.
- Beetroot juice concentrates the nitrates but also concentrates sugar. Eight ounces of beet juice contains 62 calories, zero fiber, and 22 grams of sugar. That’s comparable to many soft drinks. If your goal is weight loss, drinking calories without fiber works against you.
- Beetroot powder is the most calorie-efficient option for getting nitrates. Two teaspoons contain just 20 calories, 4 grams of carbohydrates, and only 2 grams of sugar, with a gram of fiber. Mixed into a smoothie or water before a workout, it delivers the performance benefits without a significant calorie cost.
For daily eating, stick with whole beetroot. For pre-workout nitrate loading, powder is the smarter choice over juice if you’re watching calories closely.
How to Prepare Beetroot to Keep Its Benefits
Cooking method affects how much of the beneficial nitrate you actually get. Boiling beetroot reduces its nitrate content by about 35%, because nitrates are highly water-soluble and leach out into the cooking water. That’s a significant loss if you’re eating beets specifically for their nitrate content and then discarding the water.
Roasting is a better option. Without water to leach into, roasted beets retain more of their nitrates while developing a sweeter, more concentrated flavor. Steam them if you prefer a softer texture, as steaming also limits nitrate loss compared to boiling. If you do boil beets, you can save the cooking liquid and use it in soups or smoothies to recapture some of what was lost.
Raw beetroot, grated into salads or sliced thin, preserves the full nitrate content. It also retains all its fiber intact, making raw preparation the most weight-loss-friendly approach overall.
Timing Beetroot Around Workouts
If you’re using beetroot to improve exercise performance, timing matters. Nitrate levels in your blood peak about 2 to 3 hours after consumption. That means eating beets or taking beetroot powder 2 to 3 hours before your workout gives you the best chance of feeling the performance benefit when you need it.
A practical approach: mix two teaspoons of beetroot powder into water or a protein shake about two hours before exercise. Or, if you prefer whole food, have a small beet salad as part of a pre-workout meal. On non-workout days, just include beetroot as a regular vegetable at meals, where its low calorie density and fiber do the work of keeping you satisfied.
Practical Ways to Add Beetroot to Your Diet
The simplest strategy is treating beetroot as a volume food. Grate raw beets over salads, spiralize them as a low-calorie noodle substitute, or dice roasted beets into grain bowls to add bulk without many calories. Pickled beets (without added sugar) work well as a snack or side dish. Blending a small raw beet into a morning smoothie with protein and greens adds nutrients and natural sweetness without needing extra fruit.
One thing to watch: beet juice cleanses or “detox” protocols that replace meals with beet-based drinks. These strip out fiber, concentrate sugar, and create a calorie deficit through restriction rather than sustainable eating. The clinical evidence is clear that beetroot supplementation alone doesn’t change body composition. It works best as part of a balanced, calorie-controlled diet where it replaces higher-calorie foods and supports the exercise that actually drives fat loss.