4.75 Oz Real Salt Shaker. Since Real Salt is a natural product the analysis may vary slightly. Below is a summary of analyses taken over the past several years: Sodium Avg. Chloride 98.32% Calcium .40% Potassium .12% Sulfur .11% Magnesium .10% Iron .06% Phosphorus .05% Iodine .002% Manganese .001...