If you want to add healthy years to your life, a respected scientist reveals a surprisingly simple and easy-to-follow rule to implement at the dinner table. Silvio Garattini, a 97-year-old oncologist and pharmacologist, believes eating less could be the key to longevity and maintaining robust health well into old age.
The Science Behind Calorie Restriction
Garattini, founder of the Mario Negri Institute in Bergamo, Italy, has dedicated decades to studying disease and ageing, lending significant weight to his insights. In a recent interview with Men’s Health, he made a striking claim: "If you eat 30% less, you live 20% longer," positioning calorie moderation as a cornerstone of a prolonged and healthy life.
He emphasizes that adopting good lifestyle habits doesn't just benefit individuals; it also alleviates pressure on families and healthcare systems. This is because many chronic diseases are intrinsically linked to poor dietary choices and physical inactivity. According to the World Health Organization, unhealthy diets contribute to millions of deaths globally each year, primarily through heart disease, diabetes, and various cancers.
Garattini's Personal Dietary Approach
When it comes to his own plate, Garattini follows a principle supported by decades of scientific research: consume a balanced diet rich in varied nutrients but strictly avoid overeating. "Varied means eating a bit of everything to obtain the micro and macronutrients we need," he explains. Research consistently indicates that diversity in plant-based foods is associated with a lower risk of numerous diseases.
Moderation remains paramount, he insists. Publications like Ageing Research Reviews highlight that calorie restriction without malnutrition has been demonstrated to improve biomarkers of ageing and extend lifespan in multiple animal species, with ongoing studies exploring its effects in human populations.
The Mediterranean Diet Advantage
Garattini is also a staunch advocate for the Mediterranean diet, a nutritional pattern high in fruits, vegetables, whole grains, and fish, while being lower in red meat and saturated fats. Numerous studies confirm that individuals who adhere more closely to the Mediterranean diet tend to have a reduced risk of heart disease and are more likely to enjoy a longer lifespan.
A study published in The British Journal of Nutrition found that the more strictly people follow this dietary regimen, the lower their risk of mortality from any cause, underscoring its comprehensive health benefits.
Debunking Meal Timing Myths
Despite the popularity of trends like intermittent fasting, Garattini clarifies that it's not about when you eat, but rather how much you consume overall. "Some research showed no significant difference between those who ate freely and those who waited 10 to 12 hours between meals," he told interviewers, adding, "What truly matters is eating little."
Whether you prefer three square meals a day or five smaller ones, the essential takeaway is moderation and nutrient quality, not the timing of your meals. As the NHS notes, maintaining a balanced diet and keeping calorie intake in check are proven strategies to reduce the risk of chronic diseases and support healthy ageing effectively.



