ArticleJournal of nutrition and metabolism2021
Impact of Ramadan Intermittent Fasting on the Heart Rate Variability and Cardiovascular Parameters of Patients with Controlled Hypertension.
Article in Journal of nutrition and metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.
- Ramadan Fasting in Chronic Heart Failure: A Systematic Review.Current cardiology reports · 2026Pooled it
- The Effects of Time-Restricted Feeding and Exercise on Cardiometabolic Health in Sedentary Older Adults: A Randomized Controlled Trial.Medicine and science in sports and exercise · 2026Trial
- Timing of food intake impacts cardiovascular and neuroendocrine physiology and risk of disease.Cardiovascular research · 2026Review
- Wrist-based wearable oscillometric blood pressure monitoring during Ramadan: a comparative study with standard devices.Frontiers in cardiovascular medicine · 2026Article
- Review on the effects of fasting on cardiac patients.American heart journal plus : cardiology research and practice · 2025Review
- The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes.Nutrients · 2023Article
- Improvement in endothelial function in hypertensive patients after Ramadan fasting: effects of cortisol.Turkish journal of medical sciences · 2023Article
- Improvement in Blood Pressure After Intermittent Fasting in Hipertension: Could Renin-Angiotensin System and Autonomic Nervous System Have a Role?Arquivos brasileiros de cardiologia · 2023Article
- Complex physiology and clinical implications of time-restricted eating.Physiological reviews · 2022Review
- Effects of 10-Day Complete Fasting on Physiological Homeostasis, Nutrition and Health Markers in Male Adults.Nutrients · 2022Article
- Intermittent Fasting: Potential Utility in the Treatment of Chronic Pain across the Clinical Spectrum.Nutrients · 2022Review
- Changes in dietary intake, chronotype and sleep pattern upon Ramadan among healthy adults in Jeddah, Saudi Arabia: A prospective study.Frontiers in nutrition · 2022Article
- Effect of Intermittent Fasting (18/6) on Energy Expenditure, Nutritional Status, and Body Composition in Healthy Adults.Evidence-based complementary and alternative medicine : eCAM · 2021Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundConflicting results are reported on the effect of Ramadan fasting on the cardiovascular health of patients with hypertension, a highly prevalent cardiovascular disease risk factor. This research aimed to evaluate the impact of fasting on cardiac health and heart rate variability (as a measure of cardiac stress) of hypertensive patients.
methodsPatients with controlled hypertension were followed in a prospective cohort during and after Ramadan. Lipid panel and blood glucose were measured at the end of each phase. Blood pressure and heart rate variability were monitored in the morning, afternoon, and evening of each follow-up day.
resultsThe study included 58 subjects (mean age: 54 ± 11.5 years, 52% male). Fasting did not affect body composition, lipid panel parameters, and blood pressure of hypertensive subjects; males only presented lower body weight and hip circumference during Ramadan. Blood glucose was significantly higher during Ramadan. Fasting significantly increased HRV during the afternoon period.
conclusionsRamadan intermittent fasting reduces cardiac stress among hypertensive patients controlled by and adherent to hypertensive medication, without affecting their hypertensive state.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.