It is really infuriating trying to search for health-related information online, especially if it's also a foodstuff, since you surface a lot of recipes as well

It is really infuriating trying to search for health-related information online, especially if it's also a foodstuff, since you surface a lot of recipes as well as fad diets and "superfood" pseudoscience. I remember reading a while ago that sweet potato was an important staple used in Asia to avert famines due to bad rice harvest and that just sweet potato and bok choy can get you most of the essential nutrition you need. But now I cannot find the sources. It's good to see bok choy listed at the top of this table, since I try to eat that once a day. Personally I choose to eat fairly simply and mostly plant-based, so I am always interested to learn about cost-effective and nutritionally dense staples and greens.