Here is what diabetes actually does to your erections

An erection is a blood flow event before it is anything else. To get hard, your blood vessels have to relax and flood the area, and that only happens when they release a molecule called nitric oxide.

Every glucose spike damages the lining of those vessels and burns through your nitric oxide. Years of high blood sugar leave the vessels stiff, narrowed, and unable to deliver the blood an erection needs.

This is why blue pills so often fail diabetic men. Blue pills try to amplify nitric oxide, but if diabetes has already wiped yours out, there is nothing for them to amplify. You get the headache without the result.

Beetroot is one of the highest natural sources of dietary nitrates on earth. Your body converts those nitrates directly into the nitric oxide diabetes has been destroying, restoring the blood flow your erections actually run on.