R. Madhavan is currently gearing up for the worldwide release of his upcoming film GDN on July 17. Directed by Krishnakumar Ramakumar and co-written by Madhavan, the biographical drama tells the story of legendary engineer and philanthropist Gopalaswamy Doraiswamy Naidu, popularly known as the "Edison of India." Amid the buzz around the film, fans have also been talking about how fit the Dhurandhar actor looks in the recently released first-look posters. However, Madhavan had earlier revealed that his dramatic weight-loss journey involved no intense workouts or supplements, but a few simple lifestyle habits.

Madhavan's fitness routine

Madhavan's fitness transformation first caught attention after he revealed that he had lost the extra weight he gained to play scientist Nambi Narayanan in Rocketry: The Nambi Effect. According to the actor, he managed to shed the kilos in just 21 days.

Speaking to Curly Tales, Madhavan said his transformation did not involve rigorous gym sessions, surgery or weight-loss supplements. Instead, he focused on changing his daily routine and eating habits.

Along with mindful eating, Madhavan also follows three simple bedtime habits that he believes played an important role in his fitness journey.

The three bedtime rituals Madhavan follows

1. Finishing dinner before 7 pm
One of Madhavan's biggest lifestyle changes was having his final meal of the day before 7 pm, usually around 6:45 pm. While this exact timing may not suit everyone's schedule, avoiding late-night meals can help reduce unnecessary snacking and excessive calorie intake. Several studies have also suggested that eating earlier in the evening and aligning meals with the body's natural circadian rhythm may support better metabolism and weight management.

2. Prioritising quality sleep
The actor has also stressed the importance of getting enough sleep. Rather than staying up late, Madhavan prefers going to bed early and ensuring he gets deep, uninterrupted sleep.

Experts have long linked poor sleep with weight gain. Inadequate sleep can affect hormones such as ghrelin and leptin, which control hunger and fullness. When these hormones become imbalanced, people often experience increased cravings and find it harder to manage their weight. Getting enough quality sleep not only helps the body recover but also supports healthier eating habits.

3. Avoiding screens before bedtime
Another rule Madhavan follows is staying away from screens for about 90 minutes before sleeping.

Mobile phones, tablets and televisions emit blue light, which can interfere with the body's production of melatonin, the hormone that helps regulate sleep. Limiting screen time before bed may improve sleep quality, which in turn supports appetite regulation, energy levels and overall health.

Simple habits backed by research

While Madhavan's routine may sound surprisingly simple, many of his habits are supported by scientific research. Eating dinner earlier, getting sufficient sleep and reducing screen exposure before bedtime have all been linked to better metabolic health and healthier body weight.

His approach also talks about that fitness is not always about spending hours in the gym. Small, consistent lifestyle changes can make a meaningful difference when followed regularly alongside a balanced diet and an active lifestyle.

About Madhavan's upcoming film GDN

Meanwhile, on the work front, Madhavan will next be seen in GDN, which releases worldwide on July 17. Directed by Krishnakumar Ramakumar and co-written by the actor himself, the film is based on the life of Gopalaswamy Doraiswamy Naidu.

The film features an ensemble cast including Sathyaraj, Jayaram, Priyamani, Vinay Rai, Dushara Vijayan and Aditi Balan. Produced by Varghese Moolan Pictures in association with Madhavan's Tricolour Films, the biographical drama has music composed by Govind Vasantha.