OBQ 258...

Some more munchin...

Clue 1: The product name was changed soon after it launch due to tradename dispute with Quaker Oats.

Clue 2:US FDA once labelled it as "unapproved new drug"

Clue 3: A term of fluid mechanics demonstrated by image below is named after this brand.

Answer: Right answer VK, perfect explanation Pranav!