Diet Cola
Food · Drink · Food, Typed Supps
Not the villain it is painted as. Also not the win it is sold as.
Stage by stage
- Sweet signal (Taste receptors): Intense sweeteners trigger sweetness at doses far too small to supply calories.
- Acid exposure (Enamel): The acidulants remain, so erosion risk is broadly unchanged from regular cola.
- Metabolism (Systemic): Aspartame is broken down to amino acids and methanol in amounts smaller than a serve of fruit juice supplies.
- Caffeine (Adenosine receptors): Caffeine content is comparable to the sugared version.
Timing
No metabolic timing. Same afternoon-caffeine caution as any cola.
Time to effect
- 30–60 min: Caffeine effect.
- —: No metabolic effect accrues.
Allergens
None of the fourteen major allergens. Derived from what this food is, not from a product label.
Eating patterns
Fits: Vegan, Vegetarian, Pescatarian, Halal, Kosher, Gluten-free. Depends on the product: Keto, Low-FODMAP.
Cost band
Cheap — roughly £2 per kg, as a band midpoint rather than a price.
Key nutrients
Nutrition per 100g
Food vs. supplement
WHO advises against relying on intense sweeteners for long-term weight control — not because they are harmful, but because the evidence for sustained benefit is weak.
Kitchen tip
Treat it as a step away from sugary drinks rather than a target — water carries none of the trade-offs.
Common myth
“Aspartame causes cancer — the WHO said so.” In reality: IARC placed it in Group 2B, meaning limited evidence warranting more study — the same category as aloe vera extract and pickled vegetables. In the same week, JECFA reaffirmed the safe daily intake, which for a 70 kg adult is around 9–14 cans a day. Both statements are true and answer different questions.
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In the glossary
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