Ancel Keys

Ancel Keys is the reason your doctor tells you to eat olive oil and fish. His groundbreaking Seven Countries Study, though not without its critics, cemented the Mediterranean diet's place in health discourse and led to a global shift in dietary recommendations. He basically told us to eat like Italians, and for that, we can all be thankful.

Before he was convincing people to embrace pasta and fresh produce, Keys was busy making sure American soldiers wouldn't starve during World War II. He developed the K-rations, those compact, calorie-dense meal kits that kept troops fueled on the front lines. One might say he was a man of sustenance, both for the battlefield and the dinner table.

While his work undoubtedly saved countless lives and improved public health, Keys was also a polarizing figure. His unwavering stance on dietary fat and cholesterol, often delivered with a robust personality, earned him both fervent followers and fierce detractors. Still, his influence on nutritional science is undeniable, proving that sometimes, a little stubbornness can go a long way in changing the world's eating habits.