Research shows that people with type 2 diabetes who have developed complications tend to have higher body fat, worse blood sugar control, and eat more unhealthy foods like saturated fats and cholesterol compared to those without complications. According to Gram Research analysis of this 2026 study of 87 adults, people with complications had significantly elevated HbA1c levels and lower protein markers, suggesting that dietary changes focused on reducing unhealthy fats and improving nutrition may help prevent complications from developing.
A new study looked at how diabetes complications affect people’s bodies and eating habits. Researchers compared 42 people with type 2 diabetes who had complications to 45 people with diabetes who didn’t have complications. They found that people with complications had higher body fat, ate more unhealthy foods, and had worse blood sugar control. According to Gram Research analysis, the findings suggest that managing diet carefully might help prevent these complications from developing or getting worse.
Key Statistics
A 2026 study of 87 adults with type 2 diabetes found that those with complications had significantly higher HbA1c levels and lower albumin concentrations compared to those without complications, indicating worse blood sugar control and nutritional status.
Research analyzing 42 people with type 2 diabetes complications found they consumed more carbohydrates, dietary cholesterol, and saturated fats than 45 people with diabetes who had no complications.
A study of body composition in 87 diabetic adults showed that those with complications had elevated body mass index, body fat percentage, visceral fat percentage, and larger waist and hip circumferences compared to those without complications.
The Quick Take
- What they studied: How complications from type 2 diabetes affect body composition, eating habits, and blood sugar control
- Who participated: 87 adults with type 2 diabetes: 42 with complications (like nerve damage or kidney problems) and 45 without complications
- Key finding: People with diabetes complications had higher body fat, worse blood sugar control (measured by HbA1c), and ate more unhealthy foods like saturated fats and cholesterol
- What it means for you: If you have type 2 diabetes, paying attention to your diet and body weight may help prevent serious complications from developing. This is especially important because the study shows complications and poor eating habits go hand-in-hand.
The Research Details
Researchers recruited 87 adults with type 2 diabetes and divided them into two groups: those with complications and those without. They measured each person’s body composition using a special device that sends harmless electrical signals through the body to estimate fat, muscle, and water. They also collected information about what people ate over 24 hours and took blood samples to check blood sugar control and protein levels.
The researchers compared the two groups to see if people with complications had different body measurements, eating patterns, and blood test results. This type of study is called a cross-sectional comparison because it looks at both groups at one point in time rather than following them over months or years.
Understanding how complications affect the body helps doctors know what to focus on when treating diabetes. If complications are linked to specific body changes and eating habits, doctors can help patients make changes to prevent complications from getting worse.
This study had a relatively small number of participants (87 total), which means the results should be confirmed with larger studies. The researchers used objective measurements like body composition analysis and blood tests, which are reliable. However, some of the differences between groups weren’t statistically significant, meaning they could have happened by chance. The study was published in a peer-reviewed journal, which means other experts reviewed the work before publication.
What the Results Show
People with diabetes complications had noticeably higher body mass index (BMI) and more body fat, including dangerous fat around internal organs called visceral fat. They also had larger waist and hip measurements. Their blood sugar control was worse, shown by higher HbA1c levels (a measure of average blood sugar over three months). Interestingly, they had lower levels of albumin, a protein in the blood that’s important for health.
When researchers looked at what people ate, those with complications consumed more carbohydrates, dietary cholesterol, and saturated fats, all foods that can make diabetes harder to control. This suggests that poor eating habits and complications may be connected.
The study found that people with complications had lower muscle mass and higher basal metabolic rates, though these differences weren’t as clear-cut as the body fat findings. The lower albumin levels suggest that people with complications may not be getting enough protein or their bodies aren’t processing protein properly.
Previous research has shown that complications from diabetes are linked to poor blood sugar control and excess body fat. This study confirms those findings and adds new information about eating habits. The connection between unhealthy eating and complications supports what doctors have long suspected: diet plays a major role in whether diabetes complications develop.
The study only included 42 people with complications, which is a small number. The researchers didn’t follow people over time, so they can’t prove that poor eating causes complications, only that they happen together. The study didn’t account for how long people had diabetes or what medications they were taking, which could affect the results. Some differences between groups weren’t statistically significant, meaning they might not be real differences.
The Bottom Line
If you have type 2 diabetes, focus on eating less saturated fat, cholesterol, and refined carbohydrates. Work with a dietitian to create a meal plan that helps control blood sugar. Monitor your weight and body composition regularly. Keep your blood sugar as close to normal as possible through diet, exercise, and medication if prescribed. These steps may help prevent complications from developing. (Confidence level: Moderate, based on observational evidence)
Anyone with type 2 diabetes should pay attention to these findings, especially those who haven’t developed complications yet. People with a family history of diabetes complications should also consider these dietary recommendations. This research is less relevant for people with type 1 diabetes, as the study focused on type 2.
Changes in body composition and blood sugar control typically take 3-6 months to show up in blood tests. You might notice improvements in how you feel within weeks of changing your diet, but measurable changes in HbA1c (blood sugar control) usually appear after 2-3 months of consistent effort.
Frequently Asked Questions
What happens to your body when you have diabetes complications?
People with diabetes complications tend to accumulate more body fat, especially dangerous fat around organs. They also have worse blood sugar control, shown by higher HbA1c levels, and lower protein levels in their blood, suggesting their bodies aren’t processing nutrients properly.
Can changing your diet prevent diabetes complications?
While this study shows complications are linked to poor eating habits, it doesn’t prove diet changes prevent them. However, eating less saturated fat and refined carbs while improving blood sugar control is recommended by doctors and may reduce complication risk.
What foods should people with type 2 diabetes avoid?
The research suggests limiting saturated fats, dietary cholesterol, and refined carbohydrates. Focus instead on whole grains, lean proteins, vegetables, and healthy fats. Work with a dietitian to create a personalized meal plan for your specific needs.
How long does it take to see improvements in blood sugar control?
Blood tests that measure average blood sugar (HbA1c) typically show improvements after 2-3 months of consistent dietary changes and exercise. You may feel better within weeks, but measurable changes in lab work take longer.
Why do people with diabetes complications have lower protein levels?
Lower albumin (a blood protein) in people with complications may indicate they’re not eating enough protein, their bodies aren’t absorbing it properly, or their kidneys aren’t functioning normally due to diabetes damage. A doctor can determine the cause.
Want to Apply This Research?
- Log daily food intake focusing on saturated fat grams and carbohydrate portions. Set a target based on your dietitian’s recommendation and track weekly totals to identify patterns.
- Use the app to set meal reminders and pre-plan meals that are lower in saturated fat and refined carbs. Create a simple shopping list based on recommended foods to make grocery shopping easier.
- Track HbA1c test results every 3 months (if available through your healthcare provider integration), body weight weekly, and waist circumference monthly. Create a dashboard showing trends over time to stay motivated.
This research provides observational evidence about the relationship between diabetes complications and body composition, diet, and blood sugar control. It does not prove that dietary changes will prevent complications. Anyone with type 2 diabetes should work with their healthcare provider and a registered dietitian before making significant dietary changes or starting new health regimens. This information is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with your doctor before changing your diabetes management plan.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.
