A reader recently asked the Food Explainer, “what precisely defines ‘yogurt’ for the FDA”? As you may have noticed, next to the yogurts in the dairy aisle is a product labeled “cultured ...

The discovery of Lactobacillus bulgaricus started with simple curiosity and a touch of homesickness. Shortly after microbiologist Stamen Grigorov got married, he left his home in Bulgaria to take ...