Adottare il digiuno intermittente (16:8, 5:2, giorni alterni) rispetto al mangiare con un programma regolare di 3 pasti
Se agisci
Adottare il digiuno intermittente
78%
Se non agisci
Mangiare con un programma regolare di 3 pasti al giorno
27%
Percentuale di chi poi rimpiange ciascuna scelta. Le barre e il registro completo dei dati compaiono sotto.
Stile di vita
Ultima revisione 2026-05-30
Qualità delle prove 4.0/5
Punteggio di revisione su otto dimensioni rispetto alla
griglia di qualità
. Ogni dimensione valutata da 1 a 5.
D1 Verifica delle fonti
5/5
D2 Autorità e indipendenza delle fonti
5/5
D3 Precisione del tasso di rimpianto
2/5
D4 Comparabilità delle fonti
4/5
D5 Schema di Gilovich
3/5
D6 Qualità della prosa
4/5
D7 Completezza degli avvertimenti
4/5
D8 Qualità del campione
5/5
Media4.0/5
Dati proxy — non esiste alcun sondaggio diretto sul rimpianto per questa decisione. I tassi sono derivati da punteggi di soddisfazione e dati sulle barriere di accesso piuttosto che da domande che chiedevano direttamente del rimpianto. Vedi avvertenze di seguito.
Rimpianto per azione
Adottare il digiuno intermittente
78%
Il 78% non aderisce più a 12 mesi nei trial di digiuno di un giorno intero (proxy di abbandono — abbandono a lungo termine, non rimpianto diretto)
Adulti iscritti a trial di digiuno di un giorno intero con follow-up oltre 52 settimane
12 mesi
Rimpianto per inazione
Mangiare con un programma regolare di 3 pasti al giorno
27%
Il 27% degli adulti statunitensi sta lavorando attivamente per perdere peso (proxy di intenzione di gestione del peso — non rimpianto diretto sul pattern dei pasti)
Adulti statunitensi, rappresentativi a livello nazionale
trasversale, condotto dal 6 al 20 novembre 2024
% rimpiange questa scelta
Adottare il digiuno intermittenteMangiare con un programma regolare di 3 pasti al giorno
78%27%
action dominates — L'azione domina — la maggior parte si pente di aver agito.
Decisioni correlate
Decisioni semanticamente simili — stesso terreno, compromessi diversi.
Perseguire attivamente la longevità (digiuno, integratori, biohacking)Accettare l'invecchiamento standard (no biohacking, assistenza medica convenzionale)
Seventy-eight percent of adults enrolled in whole-day intermittent-fasting
trials are no longer adhering at twelve months, per a 2025 BMJ review
pooling adherence data across protocols and follow-up windows.
That figure is the action-side proxy shown above, used because no
published study asks “do you regret trying intermittent fasting?”
head-on. Lapse rate is not regret rate. Participants drop the regimen
for many reasons: work meals, family schedules, social pressure,
plateauing benefits, and the NEJM finding (Liu et al., 2022) that
time-restricted eating added to calorie restriction did not outperform
calorie restriction alone on body weight, body fat, or metabolic risk
factors over twelve months. Time-restricted eating (16:8) retains
participants better than whole-day fasting, so 78% is an upper bound;
protocol-specific lapse rates range roughly 30-80%.
On the other side, 27% of US adults report actively working to lose
weight, per Gallup’s November 2024 national poll of 1,001 adults —
a concrete weight-management-intent proxy for current dissatisfaction
with the conventional 3-meals schedule. This figure also falls short
of a direct regret measure: many of those 27% have never tried IF, and
many would not point to meal timing as the source of their unease.
The two figures come from different instruments and populations
(clinical-trial cohort vs nationally representative survey) and
measure different constructs (behavioral abandonment of a specific
protocol vs active weight-management effort), so the apparent 3:1
action-to-inaction ratio overstates the precision of the cross-side
comparison. The Patikorn 2021 umbrella review in JAMA Network Open
— 11 meta-analyses, 104 outcomes — concludes that the measured
short-term metabolic and weight benefits of IF are modest and broadly
comparable to plain calorie restriction.
The 2024 American Heart Association EPI Lifestyle conference abstract
reporting a 91% higher cardiovascular-mortality hazard for eating
windows under eight hours per day is observational, not peer-reviewed,
and disputed for its retrospective single-day dietary recall design.
We mention it for context but do not lean on it. What the data
establishes is structural: intermittent fasting in practice delivers
weight-loss outcomes broadly indistinguishable from calorie
restriction, sustained adherence is rare beyond twelve months in
whole-day protocols, and the long-term safety evidence is thin. The
action-dominates pattern reflects the asymmetry between a very high
lapse rate and modest dissatisfaction with the conventional schedule,
but readers should note that both figures are proxies for different
constructs (behavioral abandonment vs weight-management intent), so
the large delta should be read with caution.
Fonti: azione
Registro delle fonti
Ogni numero qui sotto è ciò che ciascuna fonte ha riportato, con la citazione testuale su cui ci siamo basati e come siamo arrivati alla nostra cifra. Clicca su qualsiasi link per verificare direttamente.
1/3 fonti verificate in modo indipendente e alla lettera rispetto alla fonte citata
[1]JAMA Network Open / Patikorn, Roubal, Veettil et al. — Intermittent Fasting and Obesity-Related Health Outcomes: An Umbrella Review of Meta-analyses of Randomized Clinical Trials
Articolo peer-reviewed
11 meta-analyses, 104 unique outcomes; 27% of associations showed beneficial effects on body weight, BMI, lipids, blood pressure and insulin; modified alternate-day fasting and 5:2 the only types associated with >5% weight loss
Estratto
“"A total of 11 meta-analyses were included...describing 104 unique associations of different types of IF with obesity-related health outcomes. There were 28 statistically significant associations (27%) that demonstrated the beneficial outcomes for body mass index, body weight, fat mass, low-density lipoprotein cholesterol, total cholesterol, triglycerides, fasting plasma glucose, fasting insulin, homeostatic model assessment of insulin resistance, and blood pressure."
”
Dati originali da
2021-12-17
Consultato
2026-05-30
Calcolo
Patikorn et al. (JAMA Network Open, Dec 2021) is the highest-tier evidence summary on intermittent fasting outcomes available — an umbrella review of 11 published meta-analyses covering 104 unique outcomes. The review confirms that the most consistent short-term signal is modest body-weight reduction in adults with overweight or obesity, primarily under modified alternate-day fasting and 5:2. Used here to frame what IF actually delivers (modest, comparable to calorie restriction) as the backdrop for the lapse-rate proxy below. The authors explicitly flag that \"adverse outcomes were not included in existing meta-analyses, precluding us from making a comprehensive evaluation of both benefits and safety aspects of IF\" and that follow-up was typically short (median 3 months, median 38 participants per included RCT).
Indipendenza
Independent academic umbrella review with public methodology; funded by Chulalongkorn University and the Office of the Higher Education Commission Thailand, disclosed in the paper. No commercial sponsorship.
[2]The BMJ / Medina Rodríguez, Muñoz, Franco Hoyos — Intermittent fasting as a nutritional tool
Verificato
Articolo peer-reviewed
Trials shorter than 24 weeks report TRE adherence above 80%; trials with follow-up beyond 52 weeks show adherence below 22% in whole-day fasting protocols
Estratto
“"Studies shorter than 24 weeks reported adherence above 80%, while trials with follow-ups longer than 52 weeks showed a marked decline in adherence, especially in the whole day fasting group, with levels below 22% after one year."
”
Dati originali da
2025-06-18
Consultato
2026-05-30
Verifica
Estratto recuperato in modo indipendente e confermato parola per parola rispetto alla fonte citata durante il nostro audit di attendibilità.
Calcolo
Provides the action-side proxy: in whole-day fasting protocols with 12-month follow-up, adherence drops to ~22%, implying roughly 78% of participants no longer follow the prescribed regimen by one year. We use 0.78 as the action-side rate, flagged as a lapse proxy. This is NOT a regret measure. Some share of the 78% lapsed for situational reasons (work schedule, social meals, family meals) without regretting the attempt itself; another share found the regimen unsustainable and would not try again. Time-restricted eating (16:8) has better short-term adherence (~84% on prescribed-window days at 12 months in the Liu/TREAT cohort) but comparable long-term attrition. The figure ranges widely across protocols, sample selection, and incentive structure; readers should treat it as directional rather than precise.
Indipendenza
Independent academic review of pooled adherence data; methodology and funding publicly disclosed. Different research group from Patikorn et al.; no shared sample frame.
[3]Medical Dialogues / coverage of Liu et al. NEJM 2022 — Calorie restricted diet added to time-restriction fails to boost weight loss: NEJM
Fonte di riferimento
139 obese patients randomized; mean weight loss −8.0 kg in TRE+CR group vs −6.3 kg in CR-alone group; difference of 1.8 kg not statistically significant; 84.9% completed 12-month follow-up
Estratto
“"A regimen of time-restricted eating was not more beneficial with regard to reduction in body weight, body fat, or metabolic risk factors than daily calorie restriction among patients with obesity."
”
Dati originali da
2022-04-21
Consultato
2026-05-30
Calcolo
Liu et al., NEJM April 2022 (TREATY/TREAT trial). N=139 Chinese adults with obesity, 12-month randomized trial. Time-restricted eating (8 AM-4 PM window) added on top of calorie restriction did not outperform calorie restriction alone on body weight, body fat, or metabolic markers. Used as direct evidence that the headline action (\"adopt IF\") does not produce outcome benefits beyond what a conventional calorie-restricted diet would deliver. Original NEJM URL (https://www.nejm.org/doi/full/10.1056/NEJMoa2114833) returned HTTP 403 to WebFetch; Medical Dialogues is a peer medical-news outlet that reproduced the trial's verbatim conclusion sentence.
Indipendenza
Coverage of an independent NEJM trial; the trial itself was funded by the National Key R&D Program of China and disclosed no commercial conflicts.
Fonti: inazione
Registro delle fonti
Ogni numero qui sotto è ciò che ciascuna fonte ha riportato, con la citazione testuale su cui ci siamo basati e come siamo arrivati alla nostra cifra. Clicca su qualsiasi link per verificare direttamente.
1/2 fonti verificate in modo indipendente e alla lettera rispetto alla fonte citata
[1]Gallup News — 43% of Americans Say They Are Overweight; 55% Want to Slim Down
Verificato
↗ 1 other entry
Fonte di riferimento
27% of US adults are actively working to lose weight; 55% want to lose weight; 43% view themselves as overweight
Estratto
“"43%, view themselves as overweight... 55%, say they want to lose weight... only 27% report they are actively working toward that goal."
”
Dati originali da
2024-12-10
Consultato
2026-05-30
Verifica
Estratto recuperato in modo indipendente e confermato parola per parola rispetto alla fonte citata durante il nostro audit di attendibilità.
Calcolo
Gallup national poll, N=1,001 US adults, fielded November 6-20, 2024, margin of error ±4 percentage points. We use the 27% \"actively working to lose weight\" figure as the inaction-side proxy. This is NOT a retrospective regret measure about the 3-meals-per-day pattern. It captures the share of US adults whose current dissatisfaction with their weight is concrete enough to produce active behavior change — a precondition for considering intermittent fasting in the first place. Many of these 27% have never tried IF, and many would not point to meal timing as the problem even when they switch diets. The 55% \"want to lose weight\" figure is an upper bound on diet dissatisfaction; we use the narrower active-effort number because it is closer to the regret-adjacent construct (current behavior change implies current dissatisfaction with the status quo).
Indipendenza
Independent Gallup national poll using random-digit-dial methodology; no shared sample or weighting frame with the Patikorn umbrella review or the Liu/NEJM trial.
[2]PNAS / Mattson, Allison, Fontana, Harvie, Longo et al. — Meal frequency and timing in health and disease
Articolo peer-reviewed
Animal and human studies suggest intermittent energy restriction periods of as little as 16 hours can improve health indicators and counteract disease processes
Estratto
“"Emerging findings from studies of animal models and human subjects suggest that intermittent energy restriction periods of as little as 16 h can improve health indicators and counteract disease processes."
”
Dati originali da
2014-11-25
Consultato
2026-05-30
Calcolo
Mattson et al. (PNAS 2014) is the foundational peer-reviewed review framing regular grazing-pattern eating as a relatively recent and possibly suboptimal human eating pattern, against which intermittent regimens are compared. Used here on the inaction side as the peer-reviewed literature basis for the existence of any plausible health rationale to reconsider a conventional 3-meals schedule. The review is co-authored by Mark Mattson, a known IF proponent — the bias direction (favoring IF signals) is disclosed and relevant. This source does NOT supply the 27% rate; that is from Gallup 2024. It provides the peer-reviewed context establishing that the inaction-side question (whether conventional meal timing carries any cost) is a live scientific question rather than a settled one.
Indipendenza
Independent academic perspective co-authored by 13 nutrition and metabolism researchers; lead author's IF advocacy is the disclosed bias direction. No commercial sponsorship.
Avvertenze
Nessuna delle due parti misura il rimpianto direttamente, e nessun sondaggio statunitense pubblicato chiede "rimpiange di aver provato il digiuno intermittente?" o "rimpiange il suo pattern di pasti?" frontalmente. Il 78% sul lato dell'azione è derivato da una revisione di aderenza peer-reviewed (Nutrients 2023): nei trial di digiuno di un giorno intero con follow-up oltre 52 settimane, meno del 22% degli iscritti aderisce ancora. Lo invertiamo a un tasso di abbandono del 78% e lo usiamo come proxy sul lato dell'azione. L'abbandono non è il rimpianto: barriere pratiche (pasti di lavoro, programmi familiari, pressione sociale) e il risultato NEJM (Liu et al., 2022) che il time-restricted eating non ha superato la restrizione calorica spiegano una grande quota di attrito senza implicare rimpianto. Il time-restricted eating (16:8) mantiene i partecipanti meglio del digiuno di un giorno intero, quindi il 78% è un limite superiore; i tassi di abbandono specifici del protocollo variano grosso modo dal 30 all'80%. Il 27% sul lato dell'inazione è la quota Gallup 2024 di adulti statunitensi che lavorano attivamente per perdere peso — concreta insoddisfazione dietetica che motiva a considerare un pattern diverso, ma non rimpianto sul programma convenzionale stesso; molti di quel 27% non hanno mai provato l'IF e non indicherebbero il momento dei pasti come problema. Le due cifre provengono da strumenti e popolazioni diverse (coorte di trial clinico vs sondaggio rappresentativo a livello nazionale) e misurano costrutti diversi (abbandono comportamentale di un protocollo specifico vs sforzo attuale di gestione del peso), quindi il rapporto apparente 3:1 azione-inazione sovrastima la precisione del confronto tra le parti. L'abstract della conferenza American Heart Association EPI Lifestyle 2024 che riporta un hazard di mortalità cardiovascolare superiore del 91% per finestre alimentari inferiori a 8 ore è osservazionale, non peer-reviewed, e contestato per il suo disegno di richiamo dietetico retrospettivo di un giorno; lo menzioniamo per contesto ma non ci appoggiamo a esso. La revisione di Patikorn 2021 stabilisce che i benefici metabolici e di peso a breve termine misurati dell'IF sono modesti e ampiamente comparabili con la semplice restrizione calorica.
