No one should be eating margarine or tang...They could have (should have) made much wiser choices for their money. I do not think surviving on partially hydrogenated oils and high fructose corn syrup in Tang. Sprouting beans would have prevented scurvy and they are much cheaper and more healthy.
But, she's vegan so that has to be considered heavily when pondering the whole story. Here's their blog.
Tang is a commercial product that is orange-flavored sugar. One adds water to make a drink. It's rather passe and not healthy. It's claim to fame is it went to the moon with the astronauts.LOL, : i think i have blended some words here, you know Tang is seaweed in Norway so i actually have no idea what your american Tang is...