TetleyTea & Infusions#1 of 5 in categoryRating 4.3/5

Tetley Immune with Added Vitamin C Green Tea

Tetley Immune Green Tea box

Red flags

No major red flags on the label.

Green flags

  • Green flag: No added sugar
  • Green flag: Low sodium
  • Green flag: No additives

Ingredients, decoded

2 listed
  • Green Tea^ (99.52%)
  • Vitamin C (0.48%)
ConcernWorth watchingIn label order. Tap a highlighted one to learn more.

FFortifiedNutrition per 100 g
CNutritionAIngredients1Risk
Energy0 kcal
Protein0 g
Carbohydrates0 g
Total sugars0 g
Added sugars0 g
Total fat0 g
Sodium0 mg
Vitamin C6 mg
Highlighted values exceed FSSAI and UK FSA front of pack thresholds.

Our take

CleanPlate review

Green tea with 6 mg added vitamin C per cup

Tetley Immune with Added Vitamin C Green Tea is a 100 g box of loose tea made from green tea (99.52%) and vitamin C (0.48%). The panel is printed per 100 ml brewed, with 1.25 g of tea per 100 ml.

CleanPlate scores it [F]CA1. The C for nutrition is middling: modest protein, fibre and micronutrients per 100 ml. The [F] marks that added vitamin C lifts the grade; without it it would be E. The A for ingredients reflects whole or lightly processed ingredients (led by green tea), and almost no additives. The 1 for risk is low: sodium, free sugar and saturated fat are all modest (sodium 0 mg, free sugar 0 g, saturated fat 0 g per 100 ml).

Claims vs reality

What the pack says, checked against the ingredient list and nutrition panel.

  • Product name

    “with added Vitamin C”

    Holds

    Vitamin C is listed at 0.48% and the panel declares 6 mg per 100 ml.

  • On the pack

    “Vitamin C helps support immune system”

    Be careful

    A general health claim; 6 mg per cup is a small amount.

  • On the pack

    “Makes 80 cups*”

    Holds

    100 g at 1.25 g per cup is 80 cups.

How CA1 breaks down

Each grade is scored on its own. Here are the label numbers behind each one, per 100 g.

How we score →
01 Nutritional valueA to E
C

Adequate nutrient density

Protein
0 g
Fibre
Not declared
Vitamins and minerals
Vitamin C
Energy
0 kcal

Scored on protein, fibre and twelve vitamins and minerals, against the Codex and FSSAI "source" and "high" levels, per 100 g and per 100 kcal.

02 Ingredient & label integrityA to E
A

Clean, minimally processed

Base
Green Tea^
Sweeteners
None added
Additives
0
Flagged
None

Scored on how processed the ingredients are, which additives are used and why, and whether the label keeps its promises.

03 Risk nutrients1 to 5
1

Clean

Added sugar
0 g
Sodium
0 mg

Scored on free sugar, sodium, saturated fat and trans fat, each weighed by how strong the evidence of harm is.

[F] Added vitamins or minerals meaningfully lift this product's nutrition grade. Without them it would score lower.

A closer look

Does the label add up?

Green tea (99.52%, Rainforest Alliance certified) and vitamin C (0.48%).

Per 100 ml: 0 kcal, 0 g fat, 0 g sugar of which 0 g added, 0 g protein, 0 mg sodium. The panel prints every other value as 0 per 100 ml brewed. The vitamin C is fortification, scored with its factor, and it lifts the nutrition grade (without it the grade would be E).

Ingredients to watch

  • FortificationWorth watching

    The vitamin C is added; the whole nutrition credit comes from it.

  • Calories and sugarFine

    Zero calories, sugar and sodium as brewed.

  • IngredientsFine

    Two ingredients and no additive.

Common misconceptions

Myth: "Vitamin C tea boosts immunity"

A cup has 6 mg, under 10% of the daily need.

Myth: "Added vitamin C makes it a nutritious drink"

Without it the panel is all zeros.

How often, and how

  • Healthy adultsA few cups a day
  • ChildrenNot for young children (caffeine)
  • Diabetes or prediabetesFine unsweetened

Smarter ways to eat it

A fruit instead

An orange has about 50 mg.

Brew two minutes

As the pack says.

Common questions

Is Tetley Immune with Added Vitamin C Green Tea healthy?

Tetley Immune with Added Vitamin C Green Tea scores CA1 (Very Good) on CleanPlate, which makes it a strong choice that holds up on nutrition and ingredients. We found no major red flags on its label. On the plus side: No added sugar; Low sodium; No additives.

What does the CA1 score mean?

The first letter (C) grades nutritional value: adequate nutrient density. The second letter (A) grades ingredient and label integrity: clean, minimally processed. The number (1) grades risk nutrients (sugar, sodium, saturated fat): clean. The [F] means added vitamins or minerals meaningfully lift the nutrition grade.

Last reviewed October 19, 2026. Scored with the CleanPlate method from the published label.

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