Low Carb, High Fat: LCHF. This is such an engaging little video about losing weight.

I apologise for its title, but this little video is really so good and great fun to watch.
It's from a Swedish paleo type movement, LCHF (Low Carb High Fat).

youtube

Note: Paleo is short for paleolithic, and refers to the (Old) Stone Age. Obviously Stone Age people had a very low intake of salt/sodium.