07/06/2026
If you are ever on social media you have noticed the amount of stuff going on about detoxing your lymphatic system and wondered what this is all about - Is it something you should be doing?
The lymphatic system helps take nutrients to the cells in your body and return fluid to the heart. Malfunction can lead to swelling called lymphoedema - eg of a limb after lymph node removal during cancer surgery.
It is not a system that is well understood but this excellent Radio 4 programme helps to demystify it and gives some tips if you have trouble with puffy limbs. (The first few minutes are less relevant - persevere or skip them.) The accompanying programme Doctors' notes is also useful - talking about possible causes and going into more detail.
Spoiler alert - detoxing is not the main thing you need to do if you have difficulties - keep the limb moving and consider compression garments for the limb.
Drs Chris and Xand van Tulleken explore the lymphatic system.