Label Lens
31additives explained
Ingredient literacy · read what's on the label

Read the label,
spot the additives.

Pick a sample product, run the lens, and see a plain-language breakdown of its ingredients — which are synthetic dyes, added sugars, sweeteners, preservatives, flavor enhancers, or emulsifiers, and what each one actually is. You decide what it means for you.

Educational tool using sample products and ingredient data. Not medical, dietary, or safety advice. Always read the actual product label.

Sports drink

Voltage Berry Sport

HydraMax · sample product
🥤
Ingredient list
WaterSugarCitric acidSodium citrateBlue 1Red 40Sodium benzoateSucraloseNatural flavor
Ultra-processed, explained — the NOVA groups

Food scientists often sort foods not by nutrients but by how much they're processed. The NOVA framework uses four groups. "Ultra-processed" (Group 4) is the one most tied to long ingredient lists full of additives — it's a description of processing, not a verdict on any single food.

Group 1
Unprocessed or minimally processed
Fresh fruit, eggs, milk, plain rice, dried beans
Group 2
Processed culinary ingredients
Cooking oil, butter, sugar, salt — used to prepare food
Group 3
Processed foods
Canned vegetables, fresh bread, cheese, salted nuts
Group 4
Ultra-processed foods
Industrial formulas with dyes, sweeteners, emulsifiers & flavorings rarely used at home
Additive reference — browse the definitions
Red 40
Allura Red AC · FD&C Red No. 40
Synthetic dye

A synthetic (petroleum-derived) red color additive — one of the most widely used certified food dyes in the U.S. It adds red and orange tones to drinks, candy, snacks, and cereal.

Yellow 5
Tartrazine · FD&C Yellow No. 5
Synthetic dye

A synthetic lemon-yellow dye. U.S. labeling rules require it to be listed by name when present, so you can always spot it in the ingredient line.

Yellow 6
Sunset Yellow FCF · FD&C Yellow No. 6
Synthetic dye

A synthetic orange-yellow dye common in snack foods, sauces, baked goods, and beverages.

Blue 1
Brilliant Blue FCF · FD&C Blue No. 1
Synthetic dye

A synthetic blue dye used in drinks, candies, and frostings. It is often combined with a yellow dye to produce green shades.

Blue 2
Indigotine · FD&C Blue No. 2
Synthetic dye

A synthetic deep-blue dye, the color-additive form of indigo, used in some candies, beverages, and pet foods.

Green 3
Fast Green FCF · FD&C Green No. 3
Synthetic dye

A synthetic blue-green dye. It is one of the less commonly used certified dyes in the U.S. food supply.

Caramel color
Caramel coloring (Classes I–IV)
Added color

A brown coloring made by heating sugars, sometimes with ammonium or sulfite compounds. It gives colas, sauces, and baked goods their brown hue.

Titanium dioxide
TiO₂ · color additive
Added color

A bright-white mineral-based pigment used to whiten or brighten products such as candies, frostings, and coffee creamer.

Sugar
Sucrose (cane or beet)
Added sugar

Refined table sugar added during manufacturing. It is a caloric sweetener; nutrition labels now break out 'Added Sugars' separately from naturally occurring sugars.

Corn syrup
Glucose syrup from corn
Added sugar

A liquid sweetener made from corn starch, used to add sweetness, bulk, and moisture. It is counted as an added sugar.

High-fructose corn syrup
HFCS
Added sugar

A corn-based liquid sweetener in which some glucose has been converted to fructose, making it about as sweet as table sugar. Widely used in sodas and processed foods.

Dextrose
Glucose / corn sugar
Added sugar

A simple sugar (glucose) made from corn starch, used as a sweetener and texture aid. It is an added sugar.

Aspartame
Low-calorie sweetener
Artificial sweetener

An intense artificial sweetener roughly 200× sweeter than sugar, so very little is used. Products containing it carry a phenylketonurics (PKU) statement because it contains phenylalanine.

Sucralose
No-calorie sweetener
Artificial sweetener

A no-calorie sweetener made from sugar, about 600× sweeter than table sugar and heat-stable, so it appears in baked and shelf-stable products.

Acesulfame potassium
Ace-K
Artificial sweetener

A no-calorie artificial sweetener about 200× sweeter than sugar. It is frequently blended with other sweeteners to round out taste.

BHA
Butylated hydroxyanisole
Preservative

A synthetic antioxidant preservative added to keep fats and oils from going rancid, extending shelf life.

BHT
Butylated hydroxytoluene
Preservative

A synthetic antioxidant preservative, similar in purpose to BHA, used in cereals, snacks, and packaging to protect oils from spoiling.

TBHQ
Tertiary butylhydroquinone
Preservative

A synthetic antioxidant preservative used to stabilize oils and extend the shelf life of fried and packaged foods.

Sodium benzoate
Benzoic acid salt
Preservative

A preservative that slows mold, yeast, and some bacteria, used mostly in acidic foods and drinks such as sodas and dressings.

Potassium sorbate
Sorbic acid salt
Preservative

A preservative that inhibits mold and yeast, common in cheese, baked goods, dried fruit, and beverages.

Sodium nitrite
Curing salt
Preservative

A preservative used in cured and processed meats to fix color and inhibit bacterial growth; usually paired with the meat's color and flavor.

Monosodium glutamate
MSG · glutamate
Flavor enhancer

The sodium salt of glutamic acid, an amino acid found naturally in many foods. It is added to enhance savory, 'umami' taste.

Disodium guanylate
Flavor enhancer (E627)
Flavor enhancer

A flavor enhancer that boosts savory taste. It is almost always used alongside MSG, whose effect it amplifies.

Disodium inosinate
Flavor enhancer (E631)
Flavor enhancer

A savory flavor enhancer typically paired with MSG to intensify umami in snacks, soups, and seasonings.

Mono- and diglycerides
Glyceride emulsifiers
Emulsifier

Fat-derived emulsifiers that help oil and water blend and keep texture smooth in baked goods, spreads, and frozen foods.

Soy lecithin
Lecithin emulsifier
Emulsifier

An emulsifier from soybeans that keeps ingredients blended and prevents separation, common in chocolate, dressings, and baked goods.

Polysorbate 80
Tween 80
Emulsifier

A synthetic emulsifier used to keep ingredients from separating in ice cream, dressings, and some beverages.

Carrageenan
Seaweed extract
Emulsifier

A thickener and stabilizer drawn from red seaweed, used to give body to dairy, plant milks, and deli meats.

Modified food starch
Processed starch
Processing marker

A starch that has been altered (chemically or physically) to thicken, stabilize, or improve texture. Its presence is a marker of industrial processing.

Sodium phosphate
Phosphate salt
Processing marker

A salt used to adjust acidity, hold moisture, and stabilize texture in processed cheese, meats, and frozen meals.

Phosphoric acid
Acidulant
Processing marker

An acid that adds tartness and tang, used especially in colas and some processed foods.