Being a terrible cook and eating things out of cans is the mark of genius.

Compared to breakfast, lunch was much less of a regular occurrence in Einstein’s daily life. In 1915, he wrote a letter to his second son, Hans Albert Einstein, in which he says, “I am often so engrossed in my work that I forget to eat lunch.”

Some of Einstein’s scientist friends would regularly get together to discuss physics and other academic pursuits. These dinners were frugal repasts of sausage, Gruyère cheese, fruit, and tea.

Indeed, even when the food was much fancier, Einstein was more prone to getting wrapped up in conversation paying little attention to what he was eating. His friends, mathematicians Maurice Solovine and Conrad Habicht, brought him caviar for his birthday.

When Einstein was 38-years-old, one of his friends became so concerned about the scientist’s digestive problems that he sent him to a doctor. The physician diagnosed him with a “chronic stomach malady” and mandated a four-week special bland diet.

Despite the tasteless diet, his stomach problems persisted into his later life and seemed to become more serious with time. Doctors told him first to eat a balanced diet of meat and simple carbohydrates. Then, about a year before he died, a doctor suggested he cut meat, fat, and alcohol out of entirely. His vegetarianism lasted only one year.

In April of 1955, Einstein died from an abdominal aortic aneurysm. Although his diet likely isn’t to blame, his lifestyle habits may have been. According to the Mayo Clinic, tobacco use is the biggest risk factor for developing an abdominal aortic aneurysm.

So is a diet of beans, eggs, and mushrooms the secret to cracking science’s toughest questions? Of course not. But eating those kinds of nutrient-dense foods may give you the energy to try.