It could also be a sign of a sodium deficiency in the diet.
"Ye are the salt of the earth: but if the salt have lost his savour, wherewith shall it be salted? it is thenceforth good for nothing, but to be cast out, and to be trodden under foot of men." -- Matthew 5:13
Perceptively put about the salt deficiency.
Though that’s a hazard for all Christians.