I know NOTHING else of the race stats or its canon background, but my first thought was "maybe this is how Goliaths came to be?"
I'm thinking of a being that has the height of a human, but is proportionately as broad as dwarf. Do these exist?
...... a potion miscibility problem......
Sounds like a wizard did it. The next question is why the wizard did it. Bodyguards? Unstoppable army of world conquest? To show those fools at the academy it could be done? Making a sweetheart racial template for his next character? (The last is PC-only.)