Althea
Althea told me...
I would say that your argument is valid when discussing general health trends across different cultures. When we hear that certain nationalities typically suffer certain ailments more than others, the first thing to be considered is diet...without question.I believe that as far as hypertension is concerned, the relationship to high sodium intake has more to do with over eating and weight gain.
Follow me here....
Food with high sodium content TENDS TO BE junk food. Burgers, fries, pizza, lasagna, Buffalo wings, tacos, nachos, burritos.... etc, etc, etc.
People who consume mainly those kinds of foods, especially in their later years, after 50 let's say, are more prone to eat too much of a QUANTITY of those foods, which leads to obesity, which leads to hypertension.
On the other hand, older people who consume less food TEND TO eat a diet of the healthier kinds of foods that don't tempt and invite one to overindulge in them. So because they're eating food that is healthier and they eat less quantities of food, they tend to lose weight which in turn, lowers or eliminates hypertension, irregardless of the amount of sodium contained in the food.
So basically what I'm saying is that the kinds of foods that have a high sodium content, are usually the kinds of foods people tend to gorge on, which leads to obesity, which in turn leads to hypertension. The kinds of foods that have a lower sodium content are the kinds of foods people tend to eat in moderation, which leads to weight loss, which in turn leads to normal blood pressure levels.
And those people who eat healthier, lower sodium foods in lower quantities are also probably more prone to getting adequate exercise too.
The other aspect of this discussion, is basic biology. Sodium causes the body to retain water. Some people deal with it better than others, depending on a number of health/dna related matters. That's probably why we see high sodium diets in cultures that live closer to the equator. Likewise, we see genetic predisposal to salt retention there.
What the OP might have set out to disprove, is a flawed claim for many years that salt causes high blood pressure. This will somewhat true for some, and not true at all for most. Likewise, the claim that excessive salt is 'healthy', is absolute nonsense.