It pops up every time i google "best dietary source of _____" -- the website lists a whole sluagh* of vegetarian-type foods and ignores animal sources (except cheese -- preferably low-fat) completely.
THIS may be one reason that superficial readers are convinced plant-based diets are healthier. PLANTS, they read contain AAAAAALLLL these nutrients, and what's in animal-sourced foods? Saturated fats and protein ... which you can get anywhere! I mean, there's more protein in broccoli than in steak!
LIES ... and equivocations. On a per-calorie basis, there IS more protein in broccoli, but do you know how many pounds of it you'd have to eat to get enough? Gotcha.
On one scientific site, i found the information that phosphorus is most abundant in animal products but is so ubiquitous that if you get enough protein and calcium you'll get enough P. There's a lot in whole cereal grains, but it's a storage form which the human body neither absorbs nor uses well. But go to a certain POPULAR (rather than fact-centered) site and you hear that THE BEST source is whole wheat.
LIE. No equivocation.
The nutritional-information world is full of this kind of misinformation. I've no doubt that most of the sites pass on their fallacies in good conscience, having sourced them from sites THEY trust. The onus lies on the smug egos of people like Campbell and Ornish -- they publish, as "SCIENTISTS" that meat causes harm and vegetarianism is ideal.
Sorry, boys, the best dietary source of almost anything comes from animals. If it isn't contained in liver, oysters or steak tartare, you don't need it.
* pronounced "sloo." it's an Americanism derived from Irish Gaelic and it means "a host" -- ie, a lot. has nothing to do with imaginary creatures.