Danone's origin traces to 1919 in Barcelona, where Isaac Carasso, a Greek immigrant physician, observed that thousands of Spanish children suffered from intestinal infections and malnutrition. The post-World War I period in Spain was marked by poverty, food shortages, and inadequate sanitation; infant mortality rates exceeded 15% in urban areas, and digestive diseases were the leading cause of childhood death. Carasso, who had studied medicine in Istanbul and practiced in Barcelona's working-class neighborhoods, was struck by the contrast between Spanish children and the robust health of Balkan peasants who consumed fermented milk daily. This observation led him to investigate the scientific literature on lactic acid bacteria and their potential health benefits.
Inspired by the work of Nobel laureate Élie Metchnikoff at the Pasteur Institute in Paris—who had theorized in 1907 that lactic acid bacteria in fermented milk could promote longevity and digestive health by suppressing harmful gut bacteria—Carasso began producing yogurt in his kitchen using traditional Balkan fermentation techniques. He sourced milk from local farmers, heated it to sterilize, inoculated it with cultures from Bulgaria and Romania, and incubated it in ceramic pots wrapped in blankets to maintain temperature. The initial production was 10-20 pots per day, sold to pharmacies for 2 pesetas each—approximately twice the price of fresh milk but positioned as medicine rather than food.
He named the company "Danone" after his son Daniel (whose nickname was "Danon" in the Catalan diminutive), and the brand's first packaging featured a simple label with the name and a drawing of a child. The pharmacy channel was critical: in 1919, Spanish consumers had no familiarity with yogurt, and selling it as food would have required education that Carasso could not afford. By positioning yogurt as a treatment for intestinal disorders, Carasso leveraged the credibility of pharmacists and the trust parents placed in medical advice. This health-origin positioning, distinct from the food-commodity approach of contemporary dairy companies, established a brand identity that persists 106 years later.
By 1929, Daniel Carasso had joined the family business after studying at the École Supérieure de Commerce in Marseille. Recognizing the limited growth potential of the Spanish market—where yogurt remained a niche product for the affluent—Daniel proposed expanding to France, where Metchnikoff's research had generated greater awareness of fermented milk's benefits. In 1929, Daniel founded the Société Parisienne du Yoghourt Danone and opened the first retail outlet on rue André Messager in the 18th arrondissement of Paris. The location was strategic: near the Gare du Nord railway station, which brought commuters from northern suburbs, and close to working-class neighborhoods where health-conscious consumers sought affordable nutrition.
The brand's first advertising slogan—"Délicieux et sain, le yaourt Danone est le dessert juste pour une digestion heureuse et saine" (Delicious and healthy, Danone yogurt is the right dessert for happy, healthy digestion)—pioneered the combination of pleasure and health messaging that would become the company's hallmark. This dual positioning was revolutionary: most health foods of the era emphasized medicinal benefits at the expense of taste, while most desserts ignored health claims. Danone's ability to combine both—backed by Metchnikoff's scientific credibility—created a unique market position.