The daily value for phosphorus is a 700 mg how many grams of phosphorus are recommended

0.700mg

Explanation:

Elemental Phosphorus is probably different than supplement phosphorus. We cannot ingest red, yellow, or white phosphorus.

So 700mg of something is technically .7grams of that something, but supplemental phosphorus would weigh a bit more per volume of supplement because it would contain other atoms besides just phosphorus, to allow it to become BIOAVAILABLE. So depending on the molecular makeup of that edible phosphorus it may weigh 2grams per .7gram of pure phosphorus, or it could weigh 1.4grams or .9grams…. anything over that original .7grams

700mg of phosphorus is .7grams pure, but you will consume more than .7grams to get it in your system.