From Atlas Obscura, via my friend Heidi Sherman:
I Tried a Medieval Diet, And I Didn’t Even Get That Drunk
The Regimen Sanitatus Salernum was the Middle Ages’ most famous health manual. How does it hold up?
This was not, however, the case in medieval times.The Regimen Sanitatis Salernitanum was created, allegedly, by famous doctors for English royalty and disseminated in the form of a poem. It recommends, very specifically, red wine, fresh eggs, figs and grapes. It has little to say about vegetables. In many ways, it’s the antithesis of today’s health fads—it celebrates wheat, emphasizes meat, and involves two significant meals, with no mention of snacking. Water is looked on with suspicion, and juice is nowhere to be found.
But from the 1200s through the 1800s, the Regimen was one of the most well known guides to health in Europe, at a time when the stakes of staying healthy were much higher than they are now. Getting sick could be a death sentence; this regimen promised to keep people well.
Could we be ignoring some great advice? Is water really all that? I decided to test the Regimen Sanitatis Salernitanum out myself. For a week and a half, I followed, to the best of my ability, the advice of the doctors of Salerno. I drank diluted wine at dinner, and sometimes at lunch; I ate bread at almost every meal; I sought out richly stewed meat whenever I could. The regimen was not just about what to eat, though, and I also followed its prescriptions for daily life.
I felt like I was living the Game of Thrones life; some days, I felt I was living like a 13th century king. Despite the amount of wine I was consuming, I never got drunk! In fact, I felt great.
More at the link.