Action FCS is the UK charity for people affected by Familial Chylomicronaemia Syndrome (FCS)
FCS is an ultra-rare genetic condition. People with FCS can't eat fat as they don't have the enzyme which breaks it down, or what enzyme they have doesn't work properly.
Rare Disease Day
Raising awareness and generating change for the 300 million people worldwide living with a rare disease, their families and carers
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Learn more about FCS and its diagnosis
Learn more about the symptoms of FCS
Learn how FCS is treated