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“Excellent Source” vs. “Good Source” September 30, 2010

Your new favorite cereal tells you it’s a “good source of fiber.” Your orange juice is an “excellent” source of calcium. The butternut squash discussed in the post below is an “excellent” source of potassium, vitamin A, and vitamin C.

What do these labeling terms really mean?

A food can claim that it is an “excellent” source of a nutrient (usually vitamins or minerals but sometimes other things we need in our diet such as fiber) if it contains 20% or more of your Daily Value (DV). A food can be labeled as a “good” source if it contains 10-19% of your DV.

These estimates are based on an average 2,ooo calorie diet. Individual diets will vary so the exact numbers of each nutrient you need changes based on your age, gender, weight, and physical activity level. Still, the %DVs can help you get a good reference point on how much of a nutrient a food contains compared to others.

Side note: There are some exceptions to this rule. If the food contains too much fat, sodium, or cholesterol per serving for example to be considered a healthy part of your diet by the U.S. Dietary Guidelines, then the packaging can’t make these health claims, even if they do contain a lot of the nutrient. Whole milk, for example is also an excellent source of calcium but contains too much fat per serving to be allowed to list this fact on the food label.

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8 Responses to ““Excellent Source” vs. “Good Source””

  1. [...] are an excellent source of riboflavin, phosphorus, and selenium. They are also high in fat and sodium (especially when [...]

  2. [...] does it mean for bok choy to be an “excellent” source of the vitamins mentioned?  Review the term [...]

  3. [...] Highlights: Even just one leaf of this leafy green provides an excellent source of Vitamin K, Vitamin C, and Vitamin [...]

  4. [...] ounce of fresh arugula (about 1 1/2 cups) provides an excellent source of Vitamin K, a good source of Vitamin A, and contributes about 7% of your daily recommended [...]

  5. [...] of pomegranate arils (technically this is the name for the seeds plus the juice sacs) provides an good source of vitamin C, vitamin K, and [...]

  6. [...] you follow the directions above, your treat will be about 200 calories. The banana is a good source of potassium, manganese, fiber and vitamin C and an excellent source of vitamin B6. The unsweetened [...]

  7. [...] Nutritionally, red bananas are almost identical to yellow bananas. Bananas are an excellent source of Vitamin B6, Vitamin C, and Potassium. Vitamin C is an important antioxidant, vitamin B6 is [...]

  8. [...] are an excellent source of potassium (even more per gram than a banana), vitamin A, and vitamin C. When allowed to ripen [...]


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