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It doesn't sound that bad, if I was in that situation then yeah!

About 30g (1oz) is taken and blitzed in a household blender with some salt water. This is poured through a coffee filter to leave a watery liquid.

Dr MacConnachie inserts a tube up the patient's nose and down to the stomach. Other doctors use a different route to the bowels.

About 30ml (1fl oz) of liquid is poured down the tube.