Living to 100 may sound like something reserved for the lucky few, but research suggests our food choices could play a major role.
According to longevity expert Dr. Valter Longo, certain everyday staples – nicknamed the “Poisonous Ps” – can do more harm than good when eaten too often.
Pizza, pasta, protein overload, potatoes, and pane (bread) may all seem harmless, but in excess they could be limiting your chances of a long, healthy life.
This article is for general information only. It references the work of Dr. Valter Longo, a recognised researcher in longevity and ageing. Individual dietary needs vary, and professional advice should always be sought from a qualified healthcare provider before making changes to your diet. Photos are for illustrative purposes only.
Why Longevity Experts Are Rethinking Everyday Foods
Dr. Valter Longo focuses on how diet influences ageing and the risk of chronic disease.
His work suggests that long life isn’t just about what we add to our plates, but also what we reduce.
The so-called “Poisonous Ps” represent foods that can contribute to inflammation, weight gain, and poor metabolic health when consumed too often.
Pizza – The Weekend Favourite That Adds Up
It may be delicious, but pizza often combines refined flour, processed meats, and excess cheese. That trio can deliver high levels of saturated fat, salt, and empty calories.
According to Dr. Longo, swapping in healthier bases, lighter toppings, and plant-focused alternatives could keep the treat without the trouble.
Pasta – Comfort Food With A Catch
Pasta has long been a comfort food across the world, yet refined varieties can cause blood sugar spikes and leave you feeling sluggish.
Dr. Longo notes that wholegrain versions in modest portions are a better option for long-term health, offering fibre and slower-digesting carbs.
Protein Overload – Too Much Of A Good Thing
Protein is vital for building and repairing tissues, but overconsumption can accelerate ageing pathways.
Dr. Longo’s studies highlight that diets heavy in red meat and certain animal proteins may increase the risk of chronic diseases.
Balancing intake with more plant-based sources such as beans and lentils can support longevity.
Potatoes – The Starchy Staple To Watch
Baked, fried, or mashed, potatoes are versatile but can quickly turn unhealthy depending on how they’re prepared.
High-glycaemic varieties and fried options like chips can negatively impact blood sugar and weight management. Dr. Longo suggests limiting them in favour of lower-GI vegetables such as leafy greens or beans.
Pane (Bread) – The Daily Habit That Adds Up
Bread is a daily essential for many, yet refined white loaves lack the fibre and nutrients needed for sustained health.
Wholegrain and seeded versions are better choices, though moderation is key.
Overreliance on refined bread can add unnecessary calories and affect long-term wellness.
Making The Switch – Focus On Balance, Not Perfection
The lesson from Dr. Longo’s research isn’t to cut out these foods entirely, but to rethink frequency and portion sizes.
By swapping refined versions for whole, plant-based alternatives, and by treating indulgences as occasional rather than everyday, you can create a diet that supports both health and longevity.
