Is it harmful to eat cooked pork with red inside?

No, it is not harmful to eat cooked pork with red inside, as long as the internal temperature of the pork has reached a safe minimum of 145℉ (63℃) as measured by a food thermometer.

The pink color incooked pork does not necessarily indicate undercooking because myoglobin, a protein pigment responsible for meat color, can remain red even after the pork has reached a safe internal temperature.

To ensure food safety, always use a food thermometer to verify the internal temperature of pork before consuming it.