Boone’s analysis puts Taco Bell Diet Pepsi (500ml Bottle) at 0% of an adult’s daily calories, 9% of the daily salt limit for a child aged 4 to 6 and 0 teaspoons of free sugar.
How many calories are in Taco Bell Diet Pepsi (500ml Bottle)? It contains 4 kcal, 0g of fat (0g saturated), 0g of sugar and 0.26g of salt.
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Nutrition information
Nutrition information: Taco Bell Diet Pepsi (500ml Bottle)
| Energy | 4 kcal |
| Fat | 0g |
| of which saturates | 0g |
| Carbohydrate | 0g |
| of which sugars | 0g |
| Fibre | 0g |
| Salt | 0.26g |
| Protein | 0g |
Nutrition figures are Taco Bell UK published data from its nutrition information page (last updated 30 September 2026), per item as served and before any optional extras. Boone converts the figures to the portion and age comparisons on this page.
Taco Bell Diet Pepsi (500ml Bottle) contains 4 kcal, which is 0% of the 2,000 kcal adult daily reference intake. It provides 0g of total fat, of which 0g is saturated, 0g of sugar, 0.26g of salt, 0g of protein and 0g of fibre.
The saturated fat content of 0g represents 0% of the adult daily guideline of 20g.
Taco Bell publishes figures both per portion and per 100ml, which puts the portion at about 500ml and 1 kcal per 100ml.
Adult daily reference intakes (Reference Intake, RI)
Calories2,000 kcal
Total fat70g
Saturated fat20g
Carbohydrate260g
Sugars90g
Fibre30g
Salt6g
Protein50g
Sugar in Taco Bell Diet Pepsi (500ml Bottle)
Taco Bell Diet Pepsi (500ml Bottle) contains 0g of free sugar per standard serving (0.0 teaspoons). Low sugar
The NHS free sugar limit is 30g per day for adults, 24g for children aged 7 to 10, and 19g for children aged 4 to 6. Free sugar excludes the sugars naturally present in milk and whole fruit. The table below shows how this compares across all age groups.
Free sugar by portion: Taco Bell Diet Pepsi (500ml Bottle)
| Portion | Adult (female)
30g | Adult (male)
30g | Age 11 to 17
30g | Age 7 to 10
24g | Age 4 to 6
19g |
|---|
| Per portion | 0g
0% | 0g
0% | 0g
0% | 0g
0% | 0g
0% |
| Teaspoons | 0.0 tsp |
Boone calculates these percentages from Taco Bell UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Salt in Taco Bell Diet Pepsi (500ml Bottle)
Taco Bell Diet Pepsi (500ml Bottle) contains 0.26g of salt per standard serving. Low salt
Children have lower salt limits: 3g per day for ages 4 to 6, 5g for ages 7 to 10. The table below shows how this serving compares to daily limits for adults and children.
Salt by portion: Taco Bell Diet Pepsi (500ml Bottle)
| Portion | Adult (female)
6g | Adult (male)
6g | Age 11 to 17
6g | Age 7 to 10
5g | Age 4 to 6
3g |
|---|
| Per portion | 0.26g
4% | 0.26g
4% | 0.26g
4% | 0.26g
5% | 0.26g
9% |
Boone calculates these percentages from Taco Bell UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Calories in Taco Bell Diet Pepsi (500ml Bottle)
Taco Bell Diet Pepsi (500ml Bottle) contains 4 kcal per standard serving. Low calorie share
Daily calorie needs vary by age and sex. The table below shows how this serving compares to typical daily reference intakes.
Calories by portion: Taco Bell Diet Pepsi (500ml Bottle)
| Portion | Adult (female)
2000 kcal | Adult (male)
2500 kcal | Age 11 to 17
1936 kcal | Age 7 to 10
1553 kcal | Age 4 to 6
1291 kcal |
|---|
| Per portion | 4 kcal
0% | 4 kcal
0% | 4 kcal
0% | 4 kcal
0% | 4 kcal
0% |
Boone calculates these percentages from Taco Bell UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Saturated fat in Taco Bell Diet Pepsi (500ml Bottle)
Taco Bell Diet Pepsi (500ml Bottle) contains 0g of saturated fat per standard serving. Low saturated fat
The saturated fat guideline is 20g a day for women and 30g for men, and lower again for children. The table below shows how this serving compares.
Saturated fat by portion: Taco Bell Diet Pepsi (500ml Bottle)
| Portion | Adult (female)
20g | Adult (male)
30g | Age 11 to 17
20g | Age 7 to 10
18g | Age 4 to 6
16g |
|---|
| Per portion | 0g
0% | 0g
0% | 0g
0% | 0g
0% | 0g
0% |
Boone calculates these percentages from Taco Bell UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Fibre in Taco Bell Diet Pepsi (500ml Bottle)
Taco Bell Diet Pepsi (500ml Bottle) contains 0g of fibre per standard serving. Little fibre
Fibre is the one figure here that is a target to reach rather than a limit to stay under. UK guidance is 30g a day for adults, 25g for ages 11 to 17, 20g for ages 7 to 10 and 15g for ages 4 to 6. Most people in the UK fall well short. The table below shows how much of a day’s fibre this serving provides.
Fibre by portion: Taco Bell Diet Pepsi (500ml Bottle)
| Portion | Adult (female)
30g | Adult (male)
30g | Age 11 to 17
25g | Age 7 to 10
20g | Age 4 to 6
15g |
|---|
| Per portion | 0g
0% | 0g
0% | 0g
0% | 0g
0% | 0g
0% |
Boone calculates these percentages from Taco Bell UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under; fibre is a target to reach, so a high percentage there is a good thing. For guidance only.
Ultra-processed food: what is really in it
Processing and additives: Taco Bell Diet Pepsi (500ml Bottle)
Taco Bell Diet Pepsi (500ml Bottle) is assembled from 1 separately listed component. Reading the ingredient list closely, it contains colours, flavourings, preservatives and sweeteners. These are not there to add nutritional value. They make industrial production and distribution possible.
Colours
Restore or standardise appearance after processing. Found in the Diet Pepsi.
Flavourings
Add or restore taste lost during processing. Found in the Diet Pepsi.
Preservatives
Slow the growth of bacteria, yeasts and moulds in centrally prepared components. Found in the Diet Pepsi.
Sweeteners
Add sweetness without sugar or calories. Found in the Diet Pepsi.
Boone classifies Taco Bell Diet Pepsi (500ml Bottle) as NOVA group 4, ultra-processed, based on the published ingredient list. NOVA groups foods by how far they are from their whole-food form, not by how nutritious they are. A group 4 food is not automatically unhealthy, and a group 1 food is not automatically healthy. Read from Taco Bell UK’s published ingredient lists, 30 September 2026.
Taco Bell Diet Pepsi (500ml Bottle) contains at least 7 distinct ingredients: 1 raw and 6 manufactured. Raw means something you could buy and cook with at home; manufactured means a substance that only exists as an output of industrial processing.
Ingredient count by order: Taco Bell Diet Pepsi (500ml Bottle)
| What you order | Raw | Manufactured | Total | % manufactured |
|---|
| Taco Bell Diet Pepsi (500ml Bottle) on its own | 1 | 6 | 7 | 86% |
The 6 manufactured ingredients
aspartame, acesulfame k, caramel e150d, flavourings, phosphoric acid, citric acid, potassium sorbate, sodium citrate.
The 1 raw ingredients
diet pepsi cans and bottles: carbonated water.
Boone counts every distinct top-level ingredient named on Taco Bell’s published component lists and removes duplicates, so salt appearing in several components counts once. Where an additive class is followed by a named substance, the substance is counted. Raw covers whole foods and basic kitchen staples such as flour, sugar, salt and oil. Manufactured covers substances that only exist as an output of industrial processing. Every figure here is a minimum.
Ingredients
Taco Bell Diet Pepsi (500ml Bottle) is assembled from 1 separately listed component.
Ingredients by component: Taco Bell Diet Pepsi (500ml Bottle)
Diet Pepsi
Diet Pepsi Cans and Bottles: Carbonated Water, Colour (Caramel E150d), Acids (Phosphoric Acid, Citric Acid), Flavourings (including Caffeine), Sweeteners (Aspartame, Acesulfame K), Acidity Regulator (Sodium Citrate), Preservative (Potassium Sorbate).
Ingredients taken from Taco Bell UK’s published nutrition and allergen information, last updated 30 September 2026. Recipes change, so always check in restaurant before ordering if you have an allergy.
Allergens at a glance
Taco Bell Diet Pepsi (500ml Bottle) contains none of the 14 major allergens as an ingredient.
Allergen information: Taco Bell Diet Pepsi (500ml Bottle)
| Allergen | Status |
|---|
| Cereals containing gluten | Not present |
| Milk | Not present |
| Eggs | Not present |
| Fish | Not present |
| Crustaceans | Not present |
| Tree nuts | Not present |
| Peanuts | Not present |
| Soya | Not present |
| Sulphites | Not present |
| Molluscs | Not present |
| Sesame | Not present |
| Celery | Not present |
| Mustard | Not present |
| Lupin | Not present |
Contains = declared by Taco Bell as present. May contain traces = a supplier states the allergen cannot be excluded. Taco Bell prepares food in shared kitchens using shared equipment and cannot guarantee that cross contact with allergens will not occur. Source: Taco Bell UK nutrition and allergen information, last updated 30 September 2026.
