Intermittent Fasting: Exploring the Benefits and Risks of Intermittent Fasting for Weight Loss and Overall Health

Year : 2025 | Volume : 14 | Issue : 03 | Page : 24 29
    By

    J. Samuel Kamanda,

  • Atul Khajuria,

  • Eric Kwasi Elliason,

  • Stephen Monday,

  1. Teaching Assistant, Faculty of Allied Health Sciences, Desh Bhagat University, Mandi Gobindgarh, Punjab, India
  2. Director, Faculty of Allied Health Sciences, Desh Bhagat University, Mandi Gobindgarh, Punjab, India
  3. Teaching Assistant, Faculty of Allied Health Sciences, Desh Bhagat University, Mandi Gobindgarh, Punjab, India
  4. Teaching Assistant, Faculty of Allied Health Sciences, Desh Bhagat University, Mandi Gobindgarh, Punjab, India

Abstract

Perception in Intermittent Fasting: One novel approach for managing weight is intermittent fasting (IF) which is gaining more popularity in recent days. This research investigates advantages and disadvantages of IF with an emphasis on its impact on metabolic processes, cardiovascular health, cognitive abilities, and changes in hormone levels. Methods: A literature review comprising randomized clinical trials, cohort studies, and meta-analyses of peer-reviewed publications was performed. A resolution was obtained by utilizing studies complying with institutional and international norms. Comparisons of effect sizes, confidence intervals (CIs), and P values for evaluating the efficacy and risks associated with alternating IF regimens (for instance, 16/8 and 5:2) were undertaken through statistical analysis. Results: Our analysis shows IF leads to better metabolic adaptation with significantly higher insulin sensitivity (OR = 1.45, 95% CI 1.30–1.61, P < .001) and cardiovascular health (lowered LDL cholesterol, OR=1.32, 95% CI 1.18–1.47, P < .001). Autophagy along with decreased inflammation enhanced IF and longevity. Enhanced mental clarity, lowered neurodegenerative diseases (OR = 1.28, 95% CI 1.14–1.43, P < .001) were also noted as cognitive benefits. On the other hand, prolonged fasting periods posed risks, such as nutritional deficiency, hormonal imbalance, and other unexplored consequences. Conclusions: As an effective method of dietary practice, Intermittent Fasting (IF) shows promise in promoting health and improving weight; however, tailored approaches are critical to avoid negative outcomes. More research is needed to provide tailored approaches to intermittent fasting to ensure sustained safety and encounter minimal risks over time. Take-Home Message: Intermittent fasting has potential benefits beyond aiding calorie restriction as it may aid in weight management, enhance metabolic function, and improve cognitive abilities. However, IF variations need to be made for each person to lessen the chance of harm, including hormonal disruption, nutritional scarcity, or undernourishment. More tailored studies are urgently needed to adjust IF for sustained health.

Keywords: Autophagy, cardiovascular health, cognitive function, dietary interventions, fasting methods, insulin sensitivity, intermittent fasting, metabolic health, nutritional deficiencies, weight loss

[This article belongs to Research & Reviews : Journal of Herbal Science ]

How to cite this article:
J. Samuel Kamanda, Atul Khajuria, Eric Kwasi Elliason, Stephen Monday. Intermittent Fasting: Exploring the Benefits and Risks of Intermittent Fasting for Weight Loss and Overall Health. Research & Reviews : Journal of Herbal Science. 2025; 14(03):24-29.
How to cite this URL:
J. Samuel Kamanda, Atul Khajuria, Eric Kwasi Elliason, Stephen Monday. Intermittent Fasting: Exploring the Benefits and Risks of Intermittent Fasting for Weight Loss and Overall Health. Research & Reviews : Journal of Herbal Science. 2025; 14(03):24-29. Available from: https://journals.stmjournals.com/rrjohs/article=2025/view=229517


References

  1. Patterson RE, Sears DD. Metabolic effects of intermittent fasting. Annu Rev Nutr. 2017;37(1):371–93.
  2. Longo VD, Mattson MP. Fasting: Molecular mechanisms and clinical applications. Cell Metab. 2014;19(2):181–92.
  3. Mattson MP, Moehl K, Ghena N, Schmaedick M, Cheng A. Intermittent metabolic switching, neuroplasticity and brain health. Nat Rev Neurosci. 2018;19(2):81–94.
  4. Trepanowski JF, Kroeger CM, Barnosky A, Klempel MC, Bhutani S, Hoddy KK, et al. Effect of alternate-day fasting on weight loss, weight maintenance, and cardioprotection among metabolically healthy obese adults: A randomized clinical trial. JAMA Intern Med. 2017;177(7):930–8.
  5. Sutton EF, Beyl R, Early KS, Cefalu WT, Ravussin E, Peterson CM. Early time-restricted feeding improves insulin sensitivity, blood pressure, and oxidative stress even without weight loss in men with prediabetes. Cell Metab. 2018;27(6):1212–21.
  6. Tinsley GM, La Bounty PM. Effects of intermittent fasting on body composition and clinical health markers in humans. Nutr Rev. 2015;73(10):661–74.
  7. Mattson MP, Longo VD, Harvie M. Impact of intermittent fasting on health and disease processes. Ageing Res Rev. 2017;39:46–58.
  8. Moro T, Tinsley G, Bianco A, Marcolin G, Pacelli QF, Battaglia G, et al. Effects of eight weeks of time-restricted feeding (16/8) on basal metabolism, maximal strength, body composition, inflammation, and cardiovascular risk factors in resistance-trained males. J Transl Med. 2016;14(1):290.
  9. Rizvi ZA, Saleem J, Zeb I, Shahzad R, Kayani JA, Faryal J, et al. Effects of intermittent fasting on body composition, clinical health markers and memory status in the adult population: A single-blind randomised controlled trial. Nutr J. 2024;23(1):147.
  10. Horne BD, Clark CC. Intermittent fasting and time-restricted eating in health, physical performance, and disease prevention. Front Nutr. 2023;10:1264535.
  11. Anton SD, Moehl K, Donahoo WT, Marosi K, Lee SA, Mainous AG 3rd, et al. Flipping the metabolic switch: understanding and applying the health benefits of fasting. Obesity (Silver Spring). 2018;26(2):254–68.
  12. De Cabo R, Mattson MP. Effects of intermittent fasting on health, aging, and disease. N Engl J Med. 2019;381(26):2541–51.
  13. Chen H, Liu C, Cui S, Xia Y, Zhang K, Cheng H, et al. Intermittent fasting triggers interorgan communication to suppress hair follicle regeneration. Cell. 2025;188(1):157–74.
  14. Patikorn C, Roubal K, Veettil SK, Chandran V, Pham T, Lee YY, et al. Intermittent fasting and obesity-related health outcomes: An umbrella review of meta-analyses of randomized clinical trials. JAMA Netw Open. 2021;4(12):e2139558.
  15. Stekovic S, Hofer SJ, Tripolt N, Aon MA, Royer P, Pein L, et al. Alternate day fasting improves physiological and molecular markers of aging in healthy, non-obese humans. Cell Metab. 2019;30(3):462–76.
  16. Wilkinson MJ, Manoogian EN, Zadourian A, Lo H, Fakhouri S, Shoghi A, et al. Ten-hour time-restricted eating reduces weight, blood pressure, and atherogenic lipids in patients with metabolic syndrome. Cell Metab. 2020;31(1):92–104.
  17. Moore J, Fung J. The complete guide to fasting: Heal your body through intermittent, alternate-day, and extended fasting. New York: Simon and Schuster; 2016.
  18. Harvie MN, Pegington M, Mattson MP, Frystyk J, Dillon B, Evans G, et al. The effects of intermittent fasting on health markers in overweight and obese women: A pilot study. J Hum Nutr Diet. 2013;26(1):34–40.
  19. Gabel K, Hoddy KK, Haggerty N, Song J, Kroeger CM, Trepanowski JF, et al. Effects of intermittent fasting on health markers in humans. World J Diabetes. 2018;9(4):88–96.
  20. Cifelli CJ, Nielsen SS. Cultural and social influences on the adoption of dietary patterns. Appetite. 2020;150:104623.
  21. Sadeghi N, Jabbari M, Mozaffari-Khosravi H, Salehi-Abargouei A. Effects of intermittent fasting on mental health: A review of the literature. Front Neurosci. 2020;14:1235.

Regular Issue Subscription Original Research
Volume 14
Issue 03
Received 02/04/2025
Accepted 19/07/2025
Published 22/07/2025
Publication Time 111 Days


Login


My IP

PlumX Metrics