Upper Limit. The “Dietary Guidelines for Americans 2010” addresses sodium intake in detail. The average daily sodium intake for Americans is 3,400 milligrams per day, an excessive amount that raises blood pressure and poses health risks.In general, Americans should limit daily sodium consumption to 2,300 milligrams, but this is an upper safe limit, not a recommended daily allowance.pper Limit. The “Dietary Guidelines for Americans 2010” addresses sodium intake in detail. The average daily sodium intake for Americans is 3,400 milligrams per day, an excessive amount that raises blood pressure and poses health risks.