Claudia was twenty-eight when doctors placed her on an intravenous solution containing every vitamin, mineral and essential fat her body needed — measured to the nearest milligram. Nutritionally perfect. She died at thirty-one.

Her story changed everything psychiatrist and nutrition scientist Dr Gregor Hasler believed about food — and it will change the way you think about it too.

For decades, we have been told that health is a numbers game: count your calories, optimise your nutrients, cut the bad fats, take the right supplements. But the science is telling a profoundly different story. What Nourishes Us reveals that it is not isolated nutrients that create health — it is the living structure of real food, the ritual of how we eat, the company we keep at the table, and the mindfulness we bring to every meal.

Drawing on breakthrough research in nutritional psychiatry, the gut-brain axis and the eating habits of the world's longest-lived populations — from the Blue Zones of Japan, Sardinia and Costa Rica, to the 118-year-old French nun who enjoyed lobster and wine until the very end — Dr Hasler builds an irresistible, research-backed case for a radical rethink of what it means to eat well.