Are you working out on empty stomach? Hyderabad doctor shares what really matters for weight loss

Have you noticed that when it comes to fitness, there’s always a new ‘best way’ to do things that pops up on our social media feed? This holds especially true for workouts and weight loss. One of the most debated questions that remains is whether timing your meals around exercise can make a difference. You may prefer to exercise on an empty stomach or wish to fuel your body with energy before hitting the gym but what truly matters is consistency, overall activity levels, and how sustainable your routine is in the long run.

Having said that, Dr Sudhir Kumar, a neurologist trained at CMC Vellore and working with Apollo Hospital, Hyderabad, has shed light on the matter. Taking to his X-handle, the health expert has compared both the fasted and fed states of workouts, listing out which is more beneficial in the long run.

Fasted workouts offer no long-term advantage

According to Dr Sudhir Kumar, evidence has shown that fasted morning running is often overhyped. He emphasised that engaging in regular aerobic exercise for about four to five hours a week can significantly improve insulin sensitivity, help lower blood sugar levels, reduce visceral fat, and enhance lipid profiles. These health benefits can be seen even among individuals with Type 2 Diabetes, which highlights that consistency in physical activity plays a far more important role than meal timing.

Dr Sudhir Kumar added that training in a fasted state, typically after an overnight fast of about 12 hours, does have some physiological effects. As per the doctor, it can increase fat oxidation during physical activities and may offer a boost to metabolic flexibility, particularly for those dealing with insulin resistance. However, these advantages tend to be limited to the exercise session itself, which warms the doctor.

Consistency over meal timing

When overall calorie intake and training load are kept the same, there is little to no difference between fasted and fed workouts in terms of fat loss, reduction in visceral fat, or improvements in lipid levels. In simple terms, fasted cardio does not provide any meaningful long-term advantage for weight loss or metabolic health. However, Dr Sudhir Kumar pointed out that they may still work for some individuals due to their convenience and ability to help build a consistent routine.



Fasted workouts can also have negative effects, leading to reduced exercise performance or a higher sense of effort. Ultimately, the key takeaway from Dr Sudhir Kumar’s post is clear: long-term health benefits stem from regular exercise and maintaining a balanced diet, rather than focusing solely on whether you train on an empty or full stomach. The doctor’s analysis suggests that holistic well-being can be achieved by listening to your body and following simple steps.