Looked up a nutrition label online: <a href="https:&#x2F;&#x2F;healthyeatingrocks.files.wordpress.com&#x2F;2012&#x2F;08&#x2F;lays-chips.png" rel="nofollow">https:&#x2F;&#x2F;healthyeatingrocks.files.wordpress.com&#x2F;2012&#x2F;08&#x2F;lays-...</a><p><pre><code>    1 oz:
      150 Calories
      180 mg sodium
</code></pre>
multiply by 20&#x2F;3:<p><pre><code>    6.667 oz:
      2000 Calories
      1.2g sodium
</code></pre>
The kosher salt in my cupboard (ingredients: salt and an anti-caking agent) is 40% sodium by mass (480 mg sodium per 1.2 grams). Or, going by the atomic mass listed here ( <a href="http:&#x2F;&#x2F;www.chemicalelements.com&#x2F;show&#x2F;mass.html" rel="nofollow">http:&#x2F;&#x2F;www.chemicalelements.com&#x2F;show&#x2F;mass.html</a> ), sodium chloride should be 39% sodium by mass. Assuming an even 40%, that&#x27;s 3 grams of salt (NaCl) in 2000 Calories of american potato chips. (Or, assuming the less generous actual amu ratio, <i>3.05</i> grams of salt per 2000 Calories ;D )<p>HOWEVER: the nutrition label also indicates almost twice as much potassium (330 mg) as sodium. If that potassium is also salt (KCl), the chips will handily exceed 3.5 grams of salt per 2000 Calories.