"That's a total of 1585 calories."

That fits with the reported claim of being 1/3 of an american diet. That also explains why he's the only person at walmart taller than he is wide.

Unless he has almost no physical activity those calories are lower than recommended for weight loss. Also, when on a diet with calories as low as this your body's protein requirements increase, as they also do with higher physical activity. 50g is much lower than recommended.

The average American eats a lot, but not 5000 calories!