???

[T]

Local journalists who were invited to sample the dishes reportedly refused on health grounds.

what does 'refuse on the health grounds'?
what did those journalist refuse to do? I don't know what's that!

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S O S

 

[Tdol]

They refused to eat the food offered. ;-)

 

[T]

They refused to eat the food offered. ;-)

I've just know "health food", "health service", "health center",
But really I've never heard of that "health grounds"....

 

[Susie Smith]

They refused to eat the food offered. ;-)

I've just know "health food", "health service", "health center",
But really I've never heard of that "health grounds"....

They refused to eat the food offered because it wouldn't be good for their health.

 

[queenmaabd]

They refused to eat the food offered. ;-)

I've just know "health food", "health service", "health center",
But really I've never heard of that "health grounds"....

They refused to eat the food offered because it wouldn't be good for their health.

Dictionary.com
Grounds:
The underlying condition prompting an action; a cause. Often used in the plural: grounds for suspicion; a ground for divorce. See Synonyms at base1.

They refused the food, the underlying condition being their health.

 

[Susie Smith]

They refused to eat the food offered. ;-)

I've just know "health food", "health service", "health center",
But really I've never heard of that "health grounds"....

They refused to eat the food offered because it wouldn't be good for their health.

Dictionary.com
Grounds:
The underlying condition prompting an action; a cause. Often used in the plural: grounds for suspicion; a ground for divorce. See Synonyms at base1.

They refused the food, the underlying condition being their health.

Right!
Longman Dictionary of Contemporary English - Ground (usually plural) a reason, especially one that makes you think that something is true or correct

"They refused the food for health reasons." is another way it could be said.