Pine Kernels- Fir.

The seeds of the fir tree are hot and wet.
Pine nuts
They heat the body and help digestion. The nuts act as a mild aperient, and they can cause heartburn, except if blanched in fresh water before eating, while blanching also improves their taste.

Pine nuts are hard to digest, although they are highly nutritious.

They help to suppress cough, clear excess moisture in the lungs, although they increase semen and the desire for sexual intercourse. To balance them, one can eat the sour variety of pomegranate.