Garlic & onions are the secret.I don't know. Most people eat too much salt. I don't use much in my cooking. One can make most dishes taste acceptable if one chucks enough sugar and salt in it. It's part of how we get conned into buying the pre packaged crap.
Out of all the food problems we have the decline in nutrition per portion of the staples in particular is the most worrying aspect of the food we produce. It doesn't make any difference if it's organic, home grown, whatever, it's still less nutrition than the same foodstuff even twenty years ago.