Food Quality Guideby KarbCoach

Food Quality Guide by KarbCoach

About Food Quality Guide

Food Quality Guide is a public reference site for packaged foods. It turns nutrition facts, ingredient lists, and processing signals into clear Longevity and Food Integrity analyses so shoppers can understand what is in a product before they buy, order, or eat.

Food Quality Guide provides packaged-food analysis covering nutrition, ingredients, processing, Food Integrity and Longevity. Product pages combine available nutrition and ingredient data with consistent scoring methods and identify the underlying data sources.

What Food Quality Guide is

Food Quality Guide publishes product pages with consistent scoring, plain-language summaries, and identified data sources. It is built by KarbCoach and operated by Diamond Star Technologies, Inc.. Analyses are independent — there is no manufacturer affiliation.

What you will find on a product page

Longevity and Food Integrity

Longevity looks at nutrition and ingredient signals for how a product may fit longer-term eating patterns — calories, macros, fiber, additives, and related cues.

Food Integrity focuses on the ingredient list: transparency, processing, additives, and formulation concern signals.

The two scores answer different questions. A food can score well on nutrition and still show formulation tradeoffs on the ingredient list, or the reverse. Product pages present both so you can weigh what matters for you.

Watch our 6:44 video: why food quality needs two scores

Infographic titled Two scores. Two different questions. Left: Food Integrity Score asks What is it made of? and focuses on ingredient quality and processing. Right: Longevity Score asks How does it fit my diet? and focuses on nutrient density and dietary needs. Footer: Together, these scores provide a clearer picture than either could alone.
Food Integrity asks what a product is made of; Longevity asks how it fits longer-term eating patterns. Product pages publish both.
Comparison table titled Defining the boundaries of analysis. Food Integrity focuses on the ingredient list and formulation, evaluating additives, processing, and watchlist items. Longevity focuses on labeled nutrition per serving, evaluating macros, micros, fiber, and sodium. Neither evaluates medical safety, allergen guarantees, price, taste, or environmental impact.
Scope of each scorecard: Food Integrity is ingredient- and formulation-focused; Longevity is nutrition- and pattern-focused. Neither replaces medical, allergy, or package-label decisions.
Text version of the comparison table

Food Integrity — Primary focus: ingredient list and formulation. Key signals: additives, processing, watchlist items. Output meaning: closeness to recognizable, minimally altered ingredients. Does not evaluate: medical safety, allergen guarantees, price, taste, or environmental impact. Longevity — Primary focus: labeled nutrition per serving. Key signals: macros, micros, fiber, sodium. Output meaning: alignment with long-term dietary patterns. Does not evaluate: medical safety, allergen guarantees, price, taste, or environmental impact.

Quadrant chart titled Why a single metric fails the reality test. Axes are Longevity (low to high) and Food Integrity (low to high). Illustrative examples show products that can rank high on one axis and lower on the other, so dual scores tell a fuller story than one number alone.
The same product can look strong on one lens and weaker on the other. Illustrative placements only — published product pages are the source of truth for scores.

How the Longevity Score is calculated · How the Food Integrity Score is calculated

How this relates to KarbCoach

Food Quality Guide is the public library. The KarbCoach mobile app is where you set personal goals and preferences, then see how products relate to those priorities for meals, scanning, and deeper follow-up. Scores on this site stay the same public analyses; personalization highlights what to pay attention to for you.

Set your goals · Browse products · Browse brands

Data sources

Product pages draw on labeled nutrition and ingredient information from public label databases when available — including USDA FoodData Central and Open Food Facts — and from KarbCoach label submissions when a package was captured that way. Each product page lists the sources used for that item.

Data sources and safety information

Who this is for

Food Quality Guide is for shoppers, researchers, and anyone who wants a consistent, readable view of packaged-food nutrition and ingredients. Pages are educational product information — not personalized medical advice, not an allergy decision tool, and not a substitute for the package label in your hand.

Label accuracy and safety

Ingredient lists, nutrition values, and related details shown here and in the KarbCoach mobile app can vary by region, package size, formulation, manufacturing run, or packaging. The package you have is the authority for ingredients, nutrition facts, allergens, and other label information.

Food Quality Guide and the KarbCoach mobile app are for education and general product understanding. They are not medical advice and are not for allergy, food-safety, or other health decisions. Scores and summaries are interpretive analyses — always use the current package label for decisions that require it.