Frank Hall knows he probably should not eat Hungry-Man dinners. The frozen meals have as much as 2,230 milligrams of sodium per serving - far more than the government’s recommended daily allowance for older people - and Mr. Hall’s doctors have advised him to strictly limit salt consumption to help keep his blood pressure down. But once a week, when grocery shopping with his granddaughter, Mr. Hall, who is 80 and has heart disease, tosses one or two of the big blue packages in his cart anyway. ‘They’re really convenient and I figure you can splurge a little bit once in awhile,’ said Mr. Hall, who lives in Goldthwaite, Tex. Sprinkled into everything from bread to cheese, soups and breakfast cereal, just about every fast-food restaurant meal and now even fresh cuts of meat, salt is ubiquitous in the American food supply. And according to government data, Americans eat far too much of it. Now the nation’s largest doctors’ group, the American Medical Association, is going after the government and the food industry to reduce what it sees as a persistently high level of salt in many processed foods. At its annual meeting in late […]