Research
Hormonal
Higher BMI and central obesity are strongly associated with poor glycemic control (HbA1c ≥ 7%) in Japanese adults with Type 2 Diabetes, with over 50% of obese patients failing to meet glycemic targets.
If you have Type 2 Diabetes and are in an obesity class (BMI ≥ 25 kg/m² in Japan), your risk of having high blood sugar (HbA1c ≥ 7%) is over 50%. Managing your body weight is a critical step to improving your glycemic control, especially if you are under 45 years old.
GoodSupportsHIGH confidence
People in higher BMI categories had higher mean HbA1c, with > 50% of people with T2D in obesity class I–IV (54.8–56.5%) having HbA1c ≥ 7%.
Why this rating
Large sample size (N=106,089) and longitudinal data, but it is a retrospective observational study, not an RCT.
Source
Trends of HbA1c and BMI in People with Type 2 Diabetes: A Japanese Claims-Based Study
Kazuo Hara et al. · Diabetes Therapy · 2024
DOI 10.1007/s13300-024-01543-4
cross_sectional · n=106089Cited 11×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
Related findings · Hormonal
- Initial treatment for type 2 diabetes should be a combination of metformin and either an SGLT-2 inhibitor or a GLP-1 receptor agonist to achieve cardiorenal protection, rather than monotherapy or older agents like sulfonylureas.Strong
- For patients with specific monogenic obesity syndromes (leptin deficiency, POMC/PCSK1/LEPR mutations), targeted pharmacotherapy (recombinant leptin or setmelanotide) is highly effective and should be prioritized, unlike in polygenic obesity.Strong
- Continued weekly administration of 2.4 mg subcutaneous semaglutide prevents weight regain and promotes further weight loss in adults with overweight or obesity, whereas switching to placebo results in significant weight regain.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →