Daily Mail - - Good Health -

His­tamine in­tol­er­ance is not the only food­based health is­sue once dis­missed as ‘faddy’ that is now an ac­cepted med­i­cal con­di­tion.


THIS can be an in­tol­er­ance to preser­va­tives called sul­phites that leads to wheez­ing, tight­ness of breath and nasal con­ges­tion. It is not a true al­lergy so blood or skin prick tests are of no use. Asth­mat­ics are sen­si­tive to sul­phites, which are also found in, for ex­am­ple, dried fruit.


THOSE who com­plain about pain or bloat­ing af­ter eat­ing bread or wheat may be tested for coeliac dis­ease, where the im­mune sys­tem re­acts to gluten. Of­ten, these blood tests and biop­sies come back neg­a­tive.

Now it is known some peo­ple have non­coeliac gluten sen­si­tiv­ity that leads to sim­i­lar symp­toms to coeliac dis­ease, but does not trig­ger the pro­duc­tion of anti-bod­ies or gut dam­age that coeliac dis­ease does. It is thought to af­fect seven mil­lion peo­ple in the UK. The ex­act cause is un­known, but symp­toms im­prove by avoid­ing gluten.


A MILK al­lergy means even a small drop can trig­ger a po­ten­tially vi­o­lent re­ac­tion, and is an im­mune sys­tem re­sponse to a pro­tein in the milk.

But a lac­tose in­tol­er­ance is more sub­tle, and is caused by an in­abil­ity to di­gest lac­tose — the sugar in milk.

It was over­looked for a long time be­cause it could not be de­tected by al­lergy tests.

It stems from a lack of the en­zyme lac­tase and can lead to di­ar­rhoea, flat­u­lence and nau­sea which may oc­cur hours af­ter drink­ing the milk.

Lac­tose in­tol­er­ance can be tem­po­rary, while for other peo­ple it is a more longterm con­di­tion.

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