Hoping not to seem contrary, Duke of K, but a really compulsive/obsessive high school biology teacher banged this into my head: the citrus was to combat scurvy rather than pellegra. As in "ye scurvy knave!"...and if you look up the symptoms, it makes being a pirate somewhat less than an attractive career choice (even in spite of the fringe benefits like endless booty, buckling of one's swash and the ability to rise from the dead....oh...that was just in the movie?...never mind...).

But the reference to the lemon slice in weiss beer reminded me of being out doing photos of a local punk band back in the late seventies and, it being a ferociusly hot Chicago day (hot town, summer in the city, back a my neck...etc.), we decided to stop at a local joint for a brewski. It was an old German place on Southport Avenue and the bar was full of local old guys. We watched the bartender take a tall pilsner glass and fill it up off the tap, squirt a shot of raspberry syrup into it and toss a lemon slice in and let it sink to the bottom. Then the barkeep walks over and sez, "what'll ya have?" and eight voices in unison sez, "I'll have one of THOSE." Well, that was the end of the shoot....many beers were drunk and there was much rejoicing!

Best

AA