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Understanding Scores

Shopping by Score Thresholds

Set your personal PS and NS limits to filter 445K+ products and find foods that match your health goals.

15 min readPractical GuideInteractive Tools

Written by UPFL Editorial Team

Editorial standards

Why Thresholds Matter

With 445K+ products in our database, finding the options that fit your limits can be overwhelming. Score thresholds act as your personal filter, automatically eliminating products that don't meet your standards while highlighting those that do.

The Power of Dual Thresholds

Using both PS and NS thresholds together prevents common shopping mistakes:

  • PS limit alone: Might include minimally processed products with a low nutrition score, such as pure sugar
  • NS limit alone: Might include ultra-processed “health” foods
  • Both together: Finds products that score well on both scales

29.1%

Green (PS ≤ 3)

112,790 products

28.6%

Yellow (PS 3-6)

110,774 products

42.3%

Red (PS > 6)

163,698 products

Recommended Thresholds by Goal

Each list below holds real products that meet the goal's two limits and that a stricter goal on this page does not, so the four lists show four different kinds of shopping rather than four copies of the same shelf.

Strictest Limits

PS ≤ 4.0 · NS ≥ 6.5

The strictest processing limit on this page, paired with a high Nutrition Score floor. 43,603 products in our database clear both limits.

Shopping List Examples:

Loosest Limits

PS ≤ 6.5 · NS ≥ 5.0

The lowest Nutrition Score floor on this page, with a moderate processing limit. It admits products the three stricter pairs leave out. 133,448 products in our database clear both limits.

Shopping List Examples:

Highest Nutrition Floor

PS ≤ 8.0 · NS ≥ 7.0

The highest Nutrition Score floor on this page, with the loosest processing limit. Protein powders and recovery products sit here. 48,975 products in our database clear both limits.

Shopping List Examples:

Balanced Limits

PS ≤ 5.0 · NS ≥ 5.5

A moderate processing limit with a Nutrition Score floor above the catalog average of 4.4. Store brands and national brands are scored on the same ingredient lists, so both appear here; our shopping guide covers each store. 77,032 products in our database clear both limits.

Shopping List Examples:

Adjust by Food Category

Different food categories have different baseline processing levels. Adjust your thresholds accordingly to find the best options within each category.

“Good” below is measured inside each category rather than across the whole database: Good PS is the score that only the least processed quarter of that category beats, and Good NS the score only its best-nourishing quarter beats. Hit both and the product is in the better quarter of its own aisle on each axis.

Average and target processing and nutrition scores by category

Category
Avg PS
Good PS
Avg NS
Good NS
Produce
3.1
≤ 1.0
5.8
≥ 6.5
Dairy
4.7
≤ 3.0
4.0
≥ 5.0
Bakery
11.4
≤ 7.0
3.8
≥ 6.5
Snacks & Candy
7.6
≤ 4.0
4.0
≥ 5.5
Prepared Meals
9.4
≤ 6.1
4.9
≥ 6.0
Beverages
5.2
≤ 2.5
4.6
≥ 5.0

Pro Tip: In the higher-processing categories at the bottom of that table, focus more on NS to find the better options, since most of what is on the shelf will exceed a strict PS threshold.

Smart Shopping Strategies

The Perimeter Strategy

Shop the store perimeter first where fresh, minimally processed foods live:

Perimeter (Avg PS: 4.4)

  • Produce
  • Protein & Meat
  • Dairy

Center Aisles (Avg PS: 8.4)

  • Snacks & Candy
  • Bakery
  • Prepared Meals
  • Breakfast

Both averages are taken over the categories listed under them, so what the number covers is what you can see. Packaged bakery sits in the second list rather than the first: our database holds shelf-stable bakery products, not a fresh bakery counter.

The Label Quick Check

Before checking our app, use these quick indicators to estimate scores:

Signs of High PS:

  • 15+ ingredients
  • Words you can't pronounce
  • Multiple preservatives
  • “Natural flavors” listed
  • Modified/hydrogenated anything

Signs of Good NS:

  • Protein ≥ 5g per serving
  • Fiber ≥ 3g per serving
  • Added sugar < 5g
  • Sodium < 200mg
  • Short ingredient list

The Swap Strategy

Common swaps that dramatically improve your scores:

Common swaps

Swap
Flavored yogurt→Plain Greek + berries
Instant oatmeal packets→Rolled oats + cinnamon
Bottled smoothie→Whole fruit + water

Try It Yourself

Ready to put thresholds into practice? Use our search to filter products by Processing Score and Nutrition Score: Search Products by Score.

Ketzal for iPhone

Let Ketzal Read The Label For You.

Add your allergens to your Avoid List and Ketzal flags them whenever an ingredient list names them. Free with an account.

Set Up My Avoid List
The Avoid List box in Ketzal, naming wheat and milk ingredients

Key Takeaways

  • Use both limits, not one: A PS ceiling on its own lets through minimally processed sugar, and an NS floor on its own lets through ultra-processed “health” food.
  • Adjust by category: read the Good PS and Good NS columns above, which are set inside each category rather than across the whole database.
  • Shop the perimeter: the categories on the store edge average PS 4.4 against 8.4 in the packaged aisles.
  • Small swaps matter: switching from a flavored yogurt to plain yogurt with fruit moves both scores at once.

Something wrong on this page? Let me know. If it's a product, you can also submit photos of its label using our mobile app, Ketzal.