There was an excellent BBC short series titled, "Supersizers Go..." in which a couple, a restaurant critic and a comedienne, eat the diet and live the lifestyle of various periods of British history ranging from the Roman era to the 1980s. Prior to each week, they receive battery of medical tests, blood work, etc. with a follow up visit at the end of the week for comparison. IIRC, they actually came out of the WWII episode with some pretty positive results:
Supersizers Go Wartime
I can highly recommend the entire series for foodies, history buffs and just those looking for a little off-beat entertainment.