中文导读 糖尿病前期患者的血糖高于正常，但尚未达到 2 型糖尿病诊断标准，心血管风险往往更高。伊利诺伊理工学院 Britt Burton-Freeman 团队一项八周试验显示：在热量大致匹配的前提下，每日一份中等牛油果加一杯新鲜芒果，与对照饮食相比，血管舒张功能升至约 6.7%（对照降至约 4.6%），男性中心血压也出现更有利的变化；体重与总热量摄入并无明显改变。纤维、维生素 C 与单不饱和脂肪摄入更高，但胆固醇、血糖与炎症指标组间大体相近。研究发表于《美国心脏协会杂志》，ScienceDaily 于 2026-11-03 报道；获水果行业协会资助，声明未参与设计与结论。阅读时可留意 control、suggests、rather than、yet 如何区分结果、解释与局限。
正文 A simple change at the dinner table may help blood vessels work better . Adults with prediabetes who ate one medium avocado and one cup of fresh mango every day for eight weeks showed clearer gains in vessel function than people on a calorie-matched control diet . ScienceDaily reported the findings on 3 November 2026. The study , led by researchers at the Illinois Institute of Technology appeared in the Journal of the American Heart Association
本段译文 餐桌上一个简单的改变，或许有助于血管更好地工作。患有糖尿病前期的成人连续八周每天吃一个中等大小的牛油果和一杯新鲜芒果后，血管功能的改善比热量匹配的对照饮食组更明显。ScienceDaily 于 2026 年 11 月 3 日报道了这一发现。由伊利诺伊理工学院研究人员主导的这项研究，发表在《美国心脏协会杂志》上。
Prediabetes means blood sugar is higher than normal but has not yet reached the level used to diagnose type 2 diabetes . In the United States alone , tens of millions of adults live with that condition and face a higher risk of heart disease . The Illinois Tech team invited generally healthy adults aged 25 to 60 who had prediabetes and overweight or obesity . For eight weeks , one group followed an avocado-mango plan . The other group ate similar meals in which those fruits were replaced with carbohydrate foods that provided roughly the same calories . Researchers prepared about three-quarters of each participant’s daily energy needs , so the two diets stayed close in design
本段译文 糖尿病前期意味着血糖高于正常，但尚未达到用于诊断 2 型糖尿病的水平。仅在美国，就有数千万成人处于这一状态，并面临更高的心脏病风险。伊利诺伊理工学院团队招募了 82 名年龄 25 至 60 岁、总体健康、患有糖尿病前期且超重或肥胖的成人。八周内，一组遵循牛油果—芒果饮食方案；另一组吃类似餐食，但用热量大致相当的碳水化合物食品替代这两种水果。研究者准备了每位参与者约四分之三的每日能量需求，使两组饮食在设计上保持接近。
The main test measured how much a blood vessel expands when blood flow rises , a common check of how flexible those vessels are . That response climbed to about 6.7 percent in the fruit group and fell to about 4.6 percent in the control group . Blood pressure also moved in a helpful direction for men : central pressure rose by about five points in control men , while avocado-mango men saw a drop of roughly points . Body weight and total calorie intake did not change in a meaningful way , which suggests food quality itself may matter even when the scale stays steady
本段译文 主要测试测量血流增加时血管扩张的程度，这是检验血管柔韧性的常用方法。水果组的这一反应升至约 6.7%，对照组则降至约 4.6%。血压在男性中也朝更有利的方向变化：对照组男性的中心血压平均上升约 5 个点，而牛油果—芒果组男性下降约 1.9 个点。体重与总热量摄入没有出现有意义的变化，这提示即便体重秤读数保持平稳，食物本身的质量仍可能起作用。
People on the fruit plan took in more fiber , vitamin C and monounsaturated fat , nutrients often linked to heart health . Some kidney markers also looked a little better . Yet cholesterol , blood sugar and inflammation measures stayed largely similar between groups . The study did not prove that eating avocado and mango together works better than eating either fruit alone
本段译文 水果方案组摄入了更多纤维、维生素 C 和单不饱和脂肪，这些营养素常与心脏健康相关。部分肾脏指标也看起来略好。然而，胆固醇、血糖和炎症相关测量在两组之间大体相近。研究并未证明同时吃牛油果和芒果，一定比单独吃其中一种水果效果更好。
The trial lasted only eight weeks and studied a fairly narrow group , so longer and larger tests are still needed . It tracked risk indicators rather than heart attacks or strokes Funding came from fruit industry boards that had no role in the study design or findings . Even so , the results offer a practical clue : small , nutrient-rich additions to everyday meals may support vessel health without a major diet overhaul .
本段译文 试验仅持续八周，研究对象也相对较窄，因此仍需更长、更大规模的检验。它追踪的是风险指标，而非心脏病发作或中风。资助来自水果行业协会，这些机构未参与研究设计或结论。即便如此，结果仍给出一个实用线索：在日常餐食中少量加入营养丰富的食物，或许无需大改饮食，也能支持血管健康。
新闻来源