Adopter le jeûne intermittent (16:8, 5:2, un jour sur deux) vs manger sur un schéma régulier de 3 repas
Si vous agissez
Adopter le jeûne intermittent
78%
Si vous n’agissez pas
Manger sur un schéma régulier de 3 repas par jour
27%
Pourcentage de personnes qui regrettent ensuite chaque choix. Les barres et le registre complet s’affichent ci-dessous.
Mode de vie
Dernière révision 2026-05-30
Qualité des preuves 4.0/5
Score d’évaluation en huit dimensions selon la
grille de qualité
. Chaque dimension notée de 1 à 5.
D1 Vérification des sources
5/5
D2 Autorité et indépendance des sources
5/5
D3 Précision du taux de regret
2/5
D4 Comparabilité des sources
4/5
D5 Motif de Gilovich
3/5
D6 Qualité de la prose
4/5
D7 Complétude des réserves
4/5
D8 Qualité de l’échantillon
5/5
Moyenne4.0/5
Données de substitution — aucune enquête directe sur les regrets n'existe pour cette décision. Les taux sont dérivés des scores de satisfaction et des obstacles d'accès plutôt que de questions portant directement sur les regrets. Voir les mises en garde ci-dessous.
Regret d'action
Adopter le jeûne intermittent
78%
78 % n'adhèrent plus à 12 mois dans les essais de jeûne sur journée entière (proxy d'abandon — abandon à long terme, pas regret direct)
Adultes inscrits à des essais de jeûne sur journée entière avec suivi au-delà de 52 semaines
12 mois
Regret d'inaction
Manger sur un schéma régulier de 3 repas par jour
27%
27 % des adultes américains essaient activement de perdre du poids (proxy d'intention de gestion du poids — pas regret direct sur le schéma de repas)
Adultes américains, représentatifs au niveau national
transversal, recueilli du 6 au 20 novembre 2024
% regrettent ce choix
Adopter le jeûne intermittentManger sur un schéma régulier de 3 repas par jour
78%27%
action dominates — L'action domine — la plupart regrettent d'avoir agi.
Décisions associées
Décisions sémantiquement similaires — même terrain, compromis différents.
Poursuite active de la longévité (jeûne, suppléments, biohacking)Accepter le vieillissement standard (pas de biohacking, soins médicaux conventionnels)
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.
Sources : action
Registre des sources
Chaque chiffre ci-dessous correspond à ce que la source a rapporté, avec la citation textuelle sur laquelle nous nous sommes appuyés et la méthode de calcul. Cliquez sur un lien pour vérifier directement.
1/3 sources vérifiées de manière indépendante, mot pour mot, par rapport à la source citée
[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
Revue par les pairs
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
Extrait
“"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."
”
Données source de
2021-12-17
Consulté le
2026-05-30
Calcul
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).
Indépendance
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
Vérifié
Revue par les pairs
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
Extrait
“"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."
”
Données source de
2025-06-18
Consulté le
2026-05-30
Vérification
Extrait récupéré et confirmé de manière indépendante, mot pour mot, par rapport à la source citée lors de notre audit de vérification.
Calcul
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.
Indépendance
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
Source de référence
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
Extrait
“"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."
”
Données source de
2022-04-21
Consulté le
2026-05-30
Calcul
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.
Indépendance
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.
Sources : inaction
Registre des sources
Chaque chiffre ci-dessous correspond à ce que la source a rapporté, avec la citation textuelle sur laquelle nous nous sommes appuyés et la méthode de calcul. Cliquez sur un lien pour vérifier directement.
1/2 sources vérifiées de manière indépendante, mot pour mot, par rapport à la source citée
[1]Gallup News — 43% of Americans Say They Are Overweight; 55% Want to Slim Down
Vérifié
↗ 1 other entry
Source de référence
27% of US adults are actively working to lose weight; 55% want to lose weight; 43% view themselves as overweight
Extrait
“"43%, view themselves as overweight... 55%, say they want to lose weight... only 27% report they are actively working toward that goal."
”
Données source de
2024-12-10
Consulté le
2026-05-30
Vérification
Extrait récupéré et confirmé de manière indépendante, mot pour mot, par rapport à la source citée lors de notre audit de vérification.
Calcul
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).
Indépendance
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
Revue par les pairs
Animal and human studies suggest intermittent energy restriction periods of as little as 16 hours can improve health indicators and counteract disease processes
Extrait
“"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."
”
Données source de
2014-11-25
Consulté le
2026-05-30
Calcul
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.
Indépendance
Independent academic perspective co-authored by 13 nutrition and metabolism researchers; lead author's IF advocacy is the disclosed bias direction. No commercial sponsorship.
Réserves
Aucun des deux côtés ne mesure le regret directement, et aucune enquête américaine publiée ne demande frontalement « regrettez-vous d'avoir essayé le jeûne intermittent ? » ou « regrettez-vous votre schéma alimentaire ? ». Le 78 % côté action est dérivé d'une revue d'adhésion évaluée par les pairs (Nutrients 2023) : dans les essais de jeûne sur journée entière avec suivi au-delà de 52 semaines, moins de 22 % des inscrits continuent d'adhérer. Nous inversons cela en taux d'abandon de 78 % et l'utilisons comme proxy côté action. Abandonner n'est pas regretter : les barrières pratiques (repas de travail, horaires familiaux, pression sociale) et le résultat du NEJM (Liu et al., 2022) selon lequel l'alimentation à fenêtre temporelle n'a pas surpassé la restriction calorique expliquent une grande part de l'attrition sans impliquer de regret. L'alimentation à fenêtre temporelle (16:8) retient mieux les participants que le jeûne sur journée entière, donc 78 % est une borne supérieure ; les taux d'abandon spécifiques au protocole vont d'environ 30 à 80 %. Le 27 % côté inaction est la part Gallup 2024 d'adultes américains essayant activement de perdre du poids — une insatisfaction alimentaire concrète qui motive d'envisager un schéma différent, mais pas un regret sur le calendrier conventionnel lui-même ; beaucoup de ces 27 % n'ont jamais essayé le jeûne intermittent et ne pointeraient pas le moment des repas comme le problème. Les deux chiffres viennent d'instruments et de populations différents (cohorte d'essai clinique vs enquête représentative nationale) et mesurent des construits différents (abandon comportemental d'un protocole spécifique vs effort actuel de gestion du poids), donc le ratio apparent de 3:1 action vers inaction surestime la précision de la comparaison entre côtés. Le résumé de la conférence EPI Lifestyle 2024 de l'American Heart Association rapportant un risque cardiovasculaire-mortalité 91 % plus élevé pour les fenêtres alimentaires sous 8 heures est observationnel, non évalué par les pairs, et contesté pour son devis rétrospectif de rappel alimentaire d'une journée ; nous le mentionnons pour le contexte mais ne nous appuyons pas dessus. La revue parapluie Patikorn 2021 établit que les bénéfices métaboliques et de poids à court terme mesurés du jeûne intermittent sont modestes et comparables à une restriction calorique simple.
