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甜菜给你的身体带来的7件好处

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Slide 1 of 8: After years of being relegated to the recesses of the salad bar buffet next to the shredded cheese and buttered croutons, beets are enjoying their much-deserved place at the center stage of a healthy diet. They're not only chock-full of essential everyday nutrients like B vitamins, iron, manganese, copper, magnesium, and potassium, these ruby gems also are a goldmine of health-boosting nutrients that you may not get anywhere else. Here are some great—and surprising—things that happen to your body when you eat beets.

你很难拒绝甜菜

在切碎的奶酪和黄油油炸面包丁旁边的沙拉里,甜菜享受它们处在健康饮食的中心阶段当之无愧的地方。它们不仅充满了必需的日常营养素,如B族维生素,铁,锰,铜,镁和钾,这些红宝石也是促进健康的营养素的金矿,你可能无法在其他任何地方获得。当你吃甜菜时,这里发生了一些很棒且令人惊讶的事情。

Slide 2 of 8: Beets are rich in nitrates, which the body converts to nitric oxide—a compound that relaxes and dilates blood vessels, turning them into superhighways for your nutrient- and oxygen-rich blood. That means better circulation, and possibly lower blood pressure. A very small study from 2012 found that 13 men who drank just one glass of beet juice temporarily lowered their systolic blood pressure by an average of 4 to 5 points. (Note: the study was funded by a beet juice manufacturer.) Another study published in Hypertension in 2008 (which didn't receive funding from beet-juice makers) found that folks who drank the red root juice had a 10 mm Hg drop in blood pressure and less blood clotting three hours later, compared to those who drank water.

改善血压

甜菜含有丰富的硝酸盐,人体可将其转化为一氧化氮 - 一种能使血管松弛和扩张的化合物,将它们转变为富含营养和富氧血液的高速公路。这意味着更好的血液循环,并可能降低血压。在2012年的一项非常小的研究发现,只喝了一杯甜菜汁的13名男性暂时将收缩压(lowered their systolic blood pressure)平均降低了4到5分。另一项于2008年发表于高血压的研究发现,与喝水的人相比,喝红根汁的人血压在3小时后下降10毫米汞柱(had a 10 mm Hg),而且血液凝固较少。

Slide 3 of 8: Beets don't just have an potentially positive impact on your blood pressure. They are also rich in a plant alkaloid called betaine, as well as the B-vitamin folate, which together deliver a one-two punch for lowering blood levels of homocysteine, which in high levels increases your risk for artery damage and heart disease.

您的心脏病风险可能会下降

甜菜不仅会对您的血压产生潜在的积极影响。 它们还含有丰富的植物生物碱,称为甜菜碱(betaine),以及B族维生素叶酸(folate),降低同型半胱氨酸的血液水平(lowering blood levels of homocysteine),后者如果增高会增加动脉损伤和心脏病的风险。

Slide 4 of 8: When elite athletes pee in a cup for a drug test, the color might be crimson. Why? Because lots of athletes eat beets—they know research has suggested that nitrates boost endurance performance—and beets contain pigments that turn urine pink. In one study, cyclists who drank beet juice could pedal hard 15% longer in a time trial to exhaustion. It takes about three to five beets (depending on their size, which varies widely) to get a performance boost, says study author Andy Jones, PhD, dean of research in the College of Life and Environmental Sciences, University of Exeter. “Peak nitrate levels occur two to three hours after you eat or drink them,” he says. So time your intake accordingly if your want to crush your 5K PR.

它可以提高你的耐力

当精英运动员撒尿进行药物测试时,颜色可能是深红色。 为什么?因为很多运动员都吃甜菜 - 他们知道研究表明硝酸盐可以提高耐力(nitrates boost endurance) - 甜菜含有变成尿液的颜料。在一项研究中,喝甜菜汁的自行车运动员在经过一段时间的试验中可以长时间踩踏。研究作者,埃克塞特大学生命与环境科学学院院长安迪·琼斯(Andy Jones, PhD)说,这需要大约三到五个甜菜(取决于它们的大小,而且差别很大)才能获得性能提升。

Slide 5 of 8: Nitric oxide relaxes and dilates your blood vessels, which in turn increases blood flow to the brain—which could bring on better brain function. That’s particularly important as we age, as research finds that our capacity to generate nitric oxide diminishes as we get older, along with our brain's energy metabolism and neuron activity. So give your brain a boost with beets. In one small 2010 study, 14 older men and women (average age of 74) who ate a high-nitrate diet, including beet juice, for two days enjoyed more blood flow to the frontal lobe of their brains—a region known to be involved with executive functioning skills like focus, organization, and attention to detail—than when they ate a low-nitrate diet.

你的大脑会更好

一氧化氮可以放松和扩张血管,从而增加血液流向大脑 - 这可以带来更好的大脑功能。这一点尤其重要,因为研究发现随着年龄的增长,我们产生一氧化氮的能力会随着我们大脑的能量代谢和神经元活动而减少。所以用甜菜让你的大脑得到提振。

Slide 6 of 8: Your liver does the heavy work of cleaning your blood and “detoxing” your body. You can lighten its load with a daily serving of beets. Research shows that betaine, an amino acid found in beets (as well as spinach and quinoa) can help prevent and reduce the accumulation of fat in the liver. Animal studies show that rats given beet juice have higher levels of detoxifying enzymes in their bloodstream. Research on people with diabetes shows that betaine improves liver function, slightly decreases cholesterol, and reduces liver size.

你的肝脏会更好

你的肝脏对你的身体做了大量的血液清洁和“排毒”。你可以用每日甜菜来减轻负荷。研究表明甜菜碱,一种在甜菜中发现的氨基酸(以及菠菜和藜麦)可以帮助预防和减少肝脏中脂肪的积累。动物研究表明,给予甜菜汁的老鼠血液中的解毒酶含量较高。对糖尿病患者的研究表明,甜菜碱可改善肝功能,略微降低胆固醇,并减少肝脏大小。

Slide 7 of 8: Beets are also rich in betalains, a class of potent antioxidants and anti-inflammatories that battle free radical- and inflammation-related chronic diseases like heart disease, obesity, and possibly cancer. Speaking of cancer, research suggests that betacyanin, the pigment that gives beets its pretty purple hue may help protect against common carcinogens; it has also shown promise against laboratory-grown breast cancer cells and is currently being investigated as a cancer-fighter.

你可能更善于抗击慢性病

甜菜还含有丰富的甜菜碱,一种有效的抗氧化剂和消炎药,可以对抗自由基和炎症相关的慢性疾病,如心脏病,肥胖症和可能的癌症。说到癌症,研究表明甜菜碱,这种给甜菜带来的漂亮紫色色素可能有助于抵御常见的致癌物质。

Slide 8 of 8: “One way to beat irregularity and constipation is by eating fiber-rich foods like beets,” says Leslie Bonci, RD, sports nutritionist at Pittsburgh-based company Active Eating Advice. One cup of beets delivers about 4 grams of dietary fiber, particularly insoluble fiber, which helps reduce the risk of constipation, hemorrhoids, and diverticulitis. The betaine found in beets has also been shown to improve digestion. Just take note, your pee isn’t the only thing beets turn pink. Don’t be alarmed if you see crimson-colored stools 24 to 72 hours following a meal heavy in beets.

你变得有规律

“一种打败不规律和便秘的方法是吃富含纤维的食物,如甜菜,”位于匹兹堡的公司Active Eating Advice的运动营养学家莱斯利·博奇(Leslie Bonci)说道。一杯甜菜可提供约4克膳食纤维,特别是不溶性纤维,有助于降低便秘,痔疮和憩室炎的风险。在甜菜中发现的甜菜碱也被证明可以改善消化。请注意,你的小便不是唯一因甜菜变成粉红色的东西。 如果您在用餐后24至72小时内看到深红色的粪便,请不要惊慌。

 

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