In an era where clever marketing has transformed exotic berries, tubers and plant extracts from geographically distant regions into “super foods,” ostensibly better (and that much more expensive!) than culinary standards found at your local supermarket, e.g. garlic, onion, and kale, we should be reminded that the true nutritional super heroes are too busy performing anonymous feats of healing to garnish that kind of attention.
Which leads us to beets. Anything we can eat that bleeds as red and readily as the beet deserves our immediate respect. In fact, this vegetable often leaves a veritable crime scene behind it, converting a spotless kitchen counter into a nutrient-dense blood bath in a matter of minutes. There is ancient wisdom buried in the ‘doctrine of signatures’ that reveals itself so bloodily in the beet: it nourishes our blood and circulatory system. Indeed, thanks to the burgeoning growth of food science on the topic, we now know that beets are one of Nature’s finest cardiovascular tonics.
Beet’s Blood Vessel Dilating Properties
A 2008 study published in the journal Hypertension found that beets contain pharmacologically significant quantities of blood vessel dilating nitrate. Three hours after ingesting 500 ml of beet juice study subjects experience a significant drop in blood pressure that could be directly correlated with increased plasma nitrate concentrations. As endothelial dysfunction, or the inability of the blood vessels to dilate fully, is considered the ‘canary in the trousers,’ beets’ legendary ability in ancient times to enhance virility and act as an aphrodisiac now makes perfect scientific sense.
Beet Back Muscle Fatigue
But beets don’t just increase cardiovascular and ‘bedroom’ performance but athletic performance as well. In 2009, a study published in the Journal of Applied Physiology found that dietary nitrate supplementation in the form of beetroot juice reduced the oxygen cost of submaximal exercise and enhanced the tolerance to high-intensity exercise.
A follow up study published in the same journal in 2010 found that nitrate-rich beetroot juice also enhances muscle contractile efficiency during knee-extensor exercise in humans. The researchers hypothesized that the observed beneficial effect may be due to a reduced ATP cost of muscle force production.
Beet Back Infections
Consider that beets ‘live’ in the dirt, a place full of microbes which love a free meal. This means that nature has equipped the plant with natural defenses. No wonder that beet has been found to fight off the following infectious organisms:
- Beet pectin has been found to inhibit the synthesis of types A and B staphylococcal enterotoxins.
- Beet extract has been found to reduce influenza A infectivity and lethality.
- Beet root has been found capable of inhibiting Epstein-Barr virus associated tumor formation.
Undoubtedly, future research will find beet to have a wider range of antimicrobial applications. But beet’s powers don’t end there. Other already researched properties include:
- Liver Damage: A 2006 study found that beet root has significant dose-dependent liver-protective properties against the chemical carbontetrachloride. More recently, research has found that it also protects against N-nitrosodiethylamine associated liver damage.
- Cardiovascular Disease: While the “LDL cholesterol is bad” myth is almost imbecilic in its simplicity, those looking for ways to modulate the lipid ratio naturally in favor of the medical establishment’s largely drug-company drafted lipid guidelines can rest assured that beet can help. A 2000 study found beet fiber was capable of simultaneously increasing HDL and lowering LDL levels; perhaps far more impressive, the study also found close to a 30% reduction in cholesterol plaque accumulation in the aorta of those animals fed beet fiber.
- Radiation Exposure: Compounds found in beets known as betalains have been found to reduce toxicity associated with gamma radiation exposure.
- Cancer: Beetroot juice has been found to reduce adverse effects caused by DMBA, a chemical associated with mammary cancer risk. Beetroot has also been found to exhibit anti-cancer properties in prostate cancer cell lines at toxicity levels far lower than chemo-agents such as doxorubicin.
Beets, of course, have basic nutritional gifts to offer in addition to their aforementioned medicinal properties. They contain exceptionally high levels of folate at 148 mcg or 37% the Daily Value in just a one cup serving. They also sport an impressive 6.7 mg or 11% Daily Value of vitamin C, keeping in mind that vitamin C activity expressed through food its very different that isolate, semi-synthetic ascorbic acid; in other words, that 6.7 mg is worth far more than the story of molecular weight alone can tell. Another way to understand this is if you take a nutrient out of its natural context as a whole food, it behaves less like a nutrient and more like a chemical. For more information consult contributing writer Dr. Vic Shayne’s excellent book: Whole Food Nutrition: The Missing Link in Vitamin Therapy.
For a full list of beet’s nutritional components visit Nutritiondata.com’s page on beets here. For a full list of beet’s therapeutic properties on GreenMedinfo.com visit the Beet Health Benefits page. Finally, for those looking for beet recipes visit the FoodNetwork’s page on the topic, remembering to substitute organic versions of the ingredients listed whenever possible.
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