Reading a Nutrition Label in 30 Seconds

A nutrition label holds more than 20 numbers, and most of them do not matter for most people. Four of them do. We teach members to find those four in the order below, and with a little practice the whole scan takes about 30 seconds in the aisle.

Serving size, before anything else

Every number on the label is per serving, and the serving is set by the manufacturer within government rules. A bag of chips may list 150 calories for a serving of 12 chips when the bag holds four servings.

Newer labels on small single containers have to treat the whole container as one serving, which helps. But for anything that pours or scoops, the first move is to read the serving size and decide honestly how many of them you are about to eat. Then multiply.

Protein, added sugar and fiber

The next number is protein, read against the calories beside it. A simple rule we use: roughly 10 grams of protein per 100 calories means a food is protein dense. Plain Greek yogurt at 100 calories and 17 grams clears it easily. A granola bar at 190 calories and 4 grams does not, no matter what the front of the package says.

Labels now separate total sugars from added sugars. Total sugars include the natural sugar in milk and fruit, which is not the concern. The line that reads "Includes Xg Added Sugars" is the one to read. A ceiling of roughly 25 grams a day for women and 36 for men is a reasonable target, and a single flavored yogurt or bottled coffee drink can spend most of it.

Fiber slows digestion, feeds the gut bacteria and makes a meal hold longer. Most adults get around 15 grams a day against a target of 25 to 38. On a label, 3 grams or more per serving is decent and 5 or more is good.

The 30 second version

• Serving size. How many am I really eating?
• Protein per 100 calories. Close to 10?
• Added sugars. Under 10 grams per serving?
• Fiber. 3 grams or more?

If a food clears the protein, added sugar and fiber checks at the serving you will really eat, it is probably a reasonable choice. If it clears none of them, it is a treat, and treats are fine when they are chosen rather than mistaken for a meal.

A hypothetical 44 year old man who switches his morning granola bar for plain Greek yogurt and berries on the strength of these four numbers has added roughly 13 grams of protein and cut most of the added sugar before changing anything else about his day. That's the kind of thing we teach, one label at a time.

This article is educational and is not medical advice.

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