01
Start with data quality
Make sure both products have complete enough source records for a full JFS rating. A comparison is weaker when one side has missing or conflicting information.
Compare with context
Compare products without staring at one number.
JFS is most useful when the score starts the comparison instead of ending it.
02
Compare the factor breakdown
Look at sodium, sugar, saturated fat, calorie density, fiber, protein, and ingredient-quality signals rather than relying only on the total score.
03
Check the ingredient text
Ingredient lists can provide context that a nutrition panel alone does not show. JFS surfaces the available source text when it exists.
04
Use the category and your own priorities
Two products can have similar total scores for different reasons. Your own preferences and needs still matter, and JFS does not replace professional or individualized advice.
Remember: JFS is for general education. Always verify the current package label, and use professional guidance when you need individualized health, dietary, or allergen advice.