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Artificial sweeteners quebra um jejum?

Depends on your goal

Se Artificial sweeteners quebra o jejum depende do seu objetivo específico de jejum e como é preparado ou dosificado.

Calorias

~0 kcal (aspartame, sucralose, acesulfame-K)

Por quê — a lógica de caloria e insulina

Aspartame, sucralose, and acesulfame-K are essentially calorie-free. Research on their effect on insulin is mixed: some controlled studies find no insulin response; others find small cephalic-phase effects from the sweet taste. Sucralose in particular has been shown to trigger a cephalic-phase insulin response in some populations.

Isso depende do seu objetivo de jejum?

For calorie-count-based weight-loss fasting, occasional use is unlikely to matter. For metabolic fasting, the contested insulin signal is worth noting. For strict autophagy fasting, avoiding all non-water substances is the conservative approach. The science does not definitively resolve this — the prudent answer is that plain water and unsweetened beverages are safest.

Perguntas frequentes

Does aspartame break a fast?
Aspartame is calorie-free and most studies show no insulin effect. For weight-loss fasting it is generally considered safe; for strict autophagy, plain water is the safest option.
Does sucralose break a fast?
Sucralose is calorie-free but may produce a small cephalic-phase insulin response. Its effect on strict fasting is debated — treat it as 'depends' and prefer plain beverages if your goal is autophagy or metabolic precision.

Fontes

  1. New England Journal of Medicine — Intermittent Fasting: Effects and Mechanisms

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