Bone broth is excellent for the winter as it supports and nourishes your kidneys.
The bones (particularly beef bones with marrow in them) contain minerals which are more easily absorbed. They support your adrenals and improve bone density and health and also help to balance the good micro-organisms in your gut.
If you are unable to get beef bones, chicken is your next choice. Lamb can also be used, just check with your Chinese Medicine practitioner that it’s not too warming for your body type.