One condition, many consequences: Understanding the diabetes–obesity–heart–limb connection

Diabetes, obesity, cardiovascular disease, and peripheral vascular complications are no longer separate medical concerns. These medical issues form a tightly interlinked chain that affects millions of Indians across age groups. As World Diabetes Day was observed on November 14, Meril, in partnership with The Times of India came together to spread awareness about bariatric/metabolic surgery, diabetes-cardiac health, peripheral vascular disease, and general diabetes-heart discussions. The Medithon webinars highlighted that early awareness, timely medical intervention, and informed lifestyle choices can prevent life-altering complications. Here are some insights from specialists across bariatrics, endocrinology, cardiology, and vascular surgery who offer a comprehensive 360-degree understanding of the problem, the solutions, and the hope modern medicine provides.

Diabetes and obesity: A growing epidemic
Doctors consistently emphasise that diabetes and obesity are chronic diseases, not lifestyle ‘failures.’ As Dr. Jayashree Todkar explains, obesity involves metabolic, hormonal, and inflammatory changes that raise the risk of diabetes, heart disease, cancers, and joint problems.


Dr. Nandakishore Dukkipati explains that excess fat, especially around the abdomen, drives insulin resistance, making it harder for the body to manage glucose. This process significantly elevates the risk of type 2 diabetes.
When the moderator asked Dr Chandra Prakash Thakur about the connection between a poor lifestyle and coronary artery disease, he said that diet and exercise can influence the risk of CAD (Coronary Artery Disease), and that following a healthy lifestyle can help reduce risk factors.

Dr B. Srihari advised keeping blood sugar within the normal range and following a healthy diet to reduce CAD risk factors.

Why India must treat diabetes seriously
World Diabetes Day is a pressing reminder of how serious this condition is. Doctors highlight that diabetes is not just 'high sugar', but the enabler of the following dangerous diseases -

• Heart disease and silent heart attacks
• Kidney damage
• Vision loss
• Peripheral vascular disease (PVD)
• Lower-limb amputations

Many Indians are undiagnosed, which delays treatment and allows complications to progress quietly.

The role of Bariatric and Metabolic surgery
Doctors share how individuals with severe obesity or obesity-driven diabetes, bariatric/metabolic surgery offers life-changing benefits. Unlike temporary diets, surgery alters gut hormones, improves insulin sensitivity, and can even reverse diabetes in many patients. Common procedures in India include sleeve gastrectomy and Roux-en-Y gastric bypass. Remission rates for diabetes after surgery reach up to 40% within a year, with many patients maintaining long-term improvements.

The doctors also highlighted that -

• Modern bariatric surgery is safe in experienced centres.
• Patients still need lifestyle changes post-surgery.
• Women can safely get pregnant after 12–18 months.
• Surgery is increasingly covered by insurance in India.

Importantly, metabolic surgery is not just a ‘last resort,’ guidelines now support earlier intervention, especially for Asian populations who are metabolically vulnerable even at lower BMIs.

Diabetes and Peripheral Vascular Disease (PVD): The silent threat
One of the most underestimated complications of diabetes is Peripheral Vascular Disease, especially Critical Limb-Threatening Ischemia (CLTI) and diabetic foot. Dr. Varinder Singh Bedi explains that high sugar damages both blood vessels and nerves, making it easy for small cuts or blisters to turn into serious ulcers. Because neuropathy reduces pain sensation, many patients don’t notice injuries until they worsen.

Dr Vijay Thakore had a message for caregivers of diabetic foot patients as well. He advised caregivers to pay attention to any changes in the colour of the foot, or should note of blisters or raised temperature, etc. If there are any changes, it should be immediately reported to their doctor.

Dr Muralikrishna Nekkanti advised that diabetic foot patients should treat their foot as their face. They should keep observing it for injuries or any abnormal changes.

They further explained the key reasons diabetic foot becomes so dangerous—

• Poor blood supply
• Delayed healing
• Reduced sensation
• Higher infection risk

As a result, many patients reach vascular specialists too late, often when gangrene or severe ulcers have set in. Early evaluation could prevent a huge percentage of amputations. The vascular experts highlight how medicine has moved away from amputation-first thinking. Today, doctors use:

• Drug-eluting balloons
• Atherectomy
• Bioresorbable scaffolds
• Pedal loop reconstruction
• Hybrid revascularisation

These advanced techniques help preserve limbs, restore mobility, and protect long-term quality of life.
Multidisciplinary care with diabetologists, vascular surgeons, podiatrists, wound care nurses, and physiotherapists dramatically improves outcomes.
Prevention: The most powerful tool across all four domains
Doctors informed through the webinars that most diabetes-related complications are preventable. Whether it is heart attacks, amputations, obesity-driven diabetes, or neuropathy, early action changes everything.

Key preventive steps include:For heart health

• Yearly cardiac screening (ECG, lipids, kidney tests)
• Targeting BP <130/80
• Aggressive LDL control (<70 mg/dL in high-risk patients)

For foot health

• Daily foot inspection with a mirror
• Soft, cushioned footwear (never barefoot)
• Immediate care for minor cuts
• Annual vascular assessment

For diabetes management

• Keeping HbA1c in the target range
• Regular exercise
• Quick attention to unusual symptoms
• Avoiding smoking and excess alcohol

When asked what patients should follow after angioplasty, Dr Susanta Pradhan advised, "Always keep blood pressure in check." He also advised against missing the doctor-prescribed medicines.

Every webinar with specialists across bariatrics, cardiology, endocrinology, and vascular medicine ends with the same message - Diabetes does not have to steal years from your life. Early detection, lifestyle discipline, and timely treatment can prevent the most dangerous outcomes. Whether it’s metabolic surgery that reverses diabetes, drug-eluting technologies that open arteries, or foot-care protocols that prevent amputations, modern medicine offers powerful solutions. However, the first step of awareness starts with each of us.
The ideal defence is early detection
In the end, the message is clear- Diabetes gives warnings long before it proves damaging, and acting early is the single most powerful way to stay healthy. Whether it’s subtle changes in blood sugar, unusual fatigue, breathlessness, or slow-healing wounds, these are signals to meet your doctor, not reasons to delay. Timely treatment can prevent heart attacks, protect circulation, and stop minor issues from becoming life-altering complications. Prevention isn’t complicated. Individuals should pay attention to regular check-ups, annual cardiac screenings, daily foot care, good sugar control, staying active, and managing cholesterol and blood pressure to build a strong defence against the vascular risks associated with diabetes. The real strength lies in stepping in early, asking the right questions, and allowing medicine to help long before the disease does its worst. Learn everything about diabetes prevention here.

Disclaimer: The views and opinions expressed in the story are independent professional judgments of the doctors/experts, and TIL does not take any responsibility for the accuracy of their views. This should not be considered a substitute for medical advice. Please consult your treating physician for more details. This article has been produced on behalf of Meril Lifesciences Pvt. Ltd. by Times Internet’s Spotlight team.