21 September,2026 09:14 AM IST | Mumbai | Devashish Kamble
Alexander Zverev at the US Open final in New York. Pics/AFP; Instagram
By his own estimate, when Germany's Alexander Zverev walked out to play, and eventually win the US Open Final 2026, his chances were slim. "I know that today 99.9 per cent of the people wanted Ben [Shelton of the USA] to win, so I'm very sorry..." he quipped after the win. But those who have been following Zverev's journey over the years will know that the odds have never quite been in his favour.
Continous Glucose Monitors help individuals track how a new lifestyle affects their insulin needs. REPRESENTATION PICS/ISTOCK
The athlete was diagnosed with Type 1 Diabetes (T1D) at the age of four, and has been managing it alongside a professional career. Dr Rahul Baxi, consultant diabetologist, Bombay Hospital and Medical Research Centre, points out that there was more to Zverev's insulin breaks during the match than met the eye. "Type 1 Diabetes leaves you no option but to closely monitor glucose levels and take regular insulin shots wherever you are. If ignored, it can turn fatal in a matter of days," he shares.
Natural protein sources like chicken, eggs, and paneer can be ideal for beginners
For those inspired by Zverev to pick up a sport or a workout routine, Dr Baxi suggests a calculated transition. "Wearing a Continuous Glucose Monitor patch is vital in monitoring changes in your glucose levels when you take up a sport, walk, or jog," he suggests. A major change to expect, he adds, is the risk of hypoglycemia (low blood sugar). The body uses more glucose than usual during and after aerobic exercises, depleting blood glucose.
Zverev was allowed to use a glucose monitor on his smartphone and administer insulin to himself during point breaks at the US Open
Symptoms include: >> Fatigue >> Dizziness >> Lower concentration >> Sudden sugar cravings
While amateur athletes might be tempted to underdose on insulin to avoid these performance-hindering symptoms, Dr Baxi suggests strongly against it. Intense strength training exercises can also cause Hyperglycemia (high blood sugar), which can pose serious health risks.
Dr Rahul Baxi, consultant diabetologist, Bombay Hospital
Symptoms include: >> Increased thirst >> Frequent urination >> Blurred vision
Signs of either condition are a red flag for the individual to stop and take a break. What about the beginner's favourite - Whey protein? While quality supplements in themselves pose no added risks, the diabetologist suggests starting with natural foods like eggs, fish, chicken, and paneer before proceeding to high-concentrate protein. A dietician's advice is vital to tweak your diet to your needs before you take up a sport, he reminds us.
Dr Baxi narrates an anecdote from his consulting room involving a young boy from Lucknow. "The moment the mother learnt that the condition was lifelong, she burst into tears sitting right beside him. It is important to consider that the patient is already stressed by the diagnosis. A strong support in friends and family goes a long way," he shares.
While technological advancements continue to aid the management of the condition, the diabetologist urges readers to be wary of unqualified content creators peddling unscientific information and quick-fixes. As of today, there is no cure for Type 1 diabetes. "That doesn't mean you can't live a productive life. The condition is not a handicap. With the right tools and support, we could very well see another Zverev among us soon," he signs off.
I was diagnosed with Type 1 Diabetes two years ago. Rather than letting it define me, fitness became my anchor. The biggest misconception is that diabetes is caused by a bad lifestyle or that a T1D diagnosis means avoiding high-intensity training. I balance a demanding corporate 9-to-5 career alongside strength training. Viewing diabetes management like data tracking helped me take the emotion out of bad readings. A structured workout, proper recovery, and treating every day as a learning curve kept my headspace grounded.
Jehaan Patel, sales professional, 24
Finding this sweet spot can be a time-consuming process, and requires willpower, Dr Baxi admits. A few handy measures can make the journey smoother.
>> Note down how your glucose levels sway during and after physical activity. Ideally, balance cardio with strength training.
>> Beyond carbohydrates, also track your protein and fat intake, which affect glucose levels.
>> Always carry fast-acting glucose and insulin pen on your commute, at work, and at play.
>> Do not hesitate to inform those around you, if you feel hypoglycemic.
