The page answers your questions.
30 mg/kg/day. The average male adult is, say, 180 pounds or 80 kg. That's 2.5 grams daily of the stuff. A packet of nutrasweet is "1g" ... BUT as I understand, most of that is the dextrose used to make the product manageable.
You need to provide some better data, not just lean back against "the page says what you asked."