Using the "Comparison" FeatureThe "comparison" feature is used to compare the nutrient values of two different foods. Normally, the comparison is disabled. To enable it, just click on "ENABLE comparisons" in the table header for each nutrient category. Enabling comparisons will turn on the comparison feature for all nutrient categories. When the comparison feature is enabled, GrubIQ will let you compare the currently viewed food with the previously viewed food. Then, when you place your mouse over the current food's value for a specific nutrient, the amount of the same nutrient for the previous food will be displayed in a small box to the right of the cursor. The "ENABLE comparisons" link will only appear if there is a food previously viewed in your current session. 
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