01-008 · EVIDENCE A · SOURCE-SENSITIVE
After age 35, anyone who is overweight should get a fasting blood glucose test; if the result is normal, repeat it every three years.
35 岁以后只要超重，就去查一次空腹血糖，正常也每三年再查
A fasting blood glucose test costs just a few dozen yuan. Testing for glycated hemoglobin is a bit pricier, still only a few dozen yuan. All it takes is one blood draw at a clinic.
For just a few dozen yuan, a single blood test can detect prediabetes even when there are absolutely no symptoms at all. Official US screening guidelines recommend this test for anyone aged 35 to 70 who is overweight or obese. If the test comes back normal, they should repeat it every three years.
A
Move “After age 35, anyone who is overweight should get a fasting blood glucose test; if the result is normal, repeat it every three years.” to Future Me's calendar
The excuse
There is no immediate alarm, so the sensible choice can wait for a less busy week.
What feels good now
Today I keep a little money, a few minutes and avoid interrupting my default routine.
What the source says
The source summarizes the return this way: “For just a few dozen yuan, a single blood test can detect prediabetes even when there are absolutely no symptoms at all. Official US screening guidelines recommend this test for anyone aged 35 to 70 who is overweight or obese. If the test comes back normal, they should repeat it every three years.” Evidence grade A. The original states the population, caveats, and sources; this is not a personal forecast.
Use the original facts and limits. For an urgent medical, safety, financial, or legal issue, contact a qualified local professional or service.
THE ENGLISH EDITION
Original recommendation and evidence
8. After age 35, anyone who is overweight should get a fasting blood glucose test; if the result is normal, repeat it every three years.
Cost: A fasting blood glucose test costs just a few dozen yuan. Testing for glycated hemoglobin is a bit pricier, still only a few dozen yuan. All it takes is one blood draw at a clinic.
In plain terms: For just a few dozen yuan, a single blood test can detect prediabetes even when there are absolutely no symptoms at all. Official US screening guidelines recommend this test for anyone aged 35 to 70 who is overweight or obese. If the test comes back normal, they should repeat it every three years.
Benefit: The US Preventive Services Task Force is the official body that issues screening recommendations in the US. Its current guidance states that adults aged 35 to 70 who are overweight or obese — even with no symptoms at all — should be screened for prediabetes and type 2 diabetes. Overweight is defined as a BMI of 25 or higher, while obesity means a BMI of 30 or higher. This recommendation is rated as a Grade B. The Task Force also explicitly notes: “It is reasonable to screen adults with normal blood glucose levels for prediabetes every three years.”
Evidence grade: A
Sources: US Preventive Services Task Force (2021). Screening for Prediabetes and Type 2 Diabetes. <https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/screening-for-prediabetes-and-type-2-diabetes>: "at a lower BMI (≥23) if the patient is Asian American"; National Health Commission of China (NHC) (2024). (2024 ) : "《》 (WS/T 428-2013) ……24.0≤BMI＜28.0 , BMI≥28.0 ". <https://www.gov.cn/zhengce/zhengceku/202407/P020240703481519509521.pdf>
Notes: Having a prediabetes diagnosis does not mean you must start taking medication right away. Many people can fully reverse this condition simply by making lifestyle changes. In China, only a small fraction of adults are aware they have diabetes; most only find out after developing complications.
Read the complete Chinese source and notes
8. 35 岁以后只要超重，就去查一次空腹血糖，正常也每三年再查
成本: 空腹血糖十几元。糖化血红蛋白几十元。去医院抽一次血就行。
说人话: 花几十块抽一管血，就能在一点症状都没有的时候查出糖尿病前期。美国官方的筛查建议是：35 到 70 岁、超重或肥胖的人去查。查出来正常的，每三年再查一次。美国按体重指数 25 算超重，对亚裔放宽到 23；中国标准是 24 就算超重。
收益: 美国预防服务工作组是美国官方给筛查建议的机构。它现在的建议是：对 35 到 70 岁、超重或肥胖的成年人筛查糖尿病前期和 2 型糖尿病，哪怕一点症状都没有。超重指体重指数 ≥25，肥胖指 ≥30。对亚裔美国人，它建议把界线降到体重指数 ≥23，因为同样的体重指数下，亚裔的糖尿病风险更高。中国的行业标准是：体重指数 24.0 到 28.0 之间算超重，≥28.0 算肥胖。这条建议的推荐等级是 B。它还写明：「对血糖正常的成年人，每 3 年筛查一次是合理的做法」
证据等级: A
来源: US Preventive Services Task Force (2021). Screening for Prediabetes and Type 2 Diabetes. <https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/screening-for-prediabetes-and-type-2-diabetes>：「at a lower BMI (≥23) if the patient is Asian American」；国家卫生健康委办公厅 (2024). 居民体重管理核心知识（2024 年版）释义：「根据《成年人体重判定》（WS/T 428-2013）行业标准……24.0≤BMI＜28.0 为超重，BMI≥28.0 为肥胖」. <https://www.gov.cn/zhengce/zhengceku/202407/P020240703481519509521.pdf>
备注: 查出糖尿病前期不等于就要吃药。相当一部分人光靠改生活方式就能把它扭回去。中国成人里，知道自己有糖尿病的一直是少数，很多人是等到出了并发症才发现
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