As with many things different people react in different ways. Examples with taste include Low Salt (potassium based) which a few people taste as being quite bitter. Coriander / Cilantro is a lovely herb to many, but a few people find it very soapy.

My understanding has been that some people are more sensitive to sodium than others. If your BP is normal, chances are it won't have much affect, but if you've high BP then it is more likely to have an affect on your BP. I can't comment on causes, perhaps those who are more sensitive are more likely to have raised BP.