Fasting & Detox

Fasting is linked to many health benefits, but can it actually help your body remove toxins? Here's what the science says.

Fasting & Detox

Key Takeaways

  • Your body has a built-in detox system involving the skin, lungs, liver, kidneys, digestive system, and immune system.
  • Some research suggests fasting and caloric restriction may boost enzymes involved in the body's natural detoxification processes.
  • Fasting may support liver health, which plays a central role in detoxification.
  • Most supporting evidence comes from animal studies, so it is unclear how significant these effects are in humans.
  • For healthy adults, the best support for detoxification is a balanced lifestyle including a nutrient-rich diet, quality sleep, and regular exercise.

Does Fasting Help Release Toxins?

Fasting is incredibly popular in the health and fitness community. Not only can it help with weight loss, but fasting has been linked to other health benefits like reduced inflammation, improved blood sugar levels, and improved cholesterol levels.

Because fasting can help you lose weight and may have benefits for your metabolism, some people wonder if fasting can help release toxins from your body.

This article helps answer the question - does fasting help release toxins?

Does fasting help remove toxins?

Your body has a complex system that removes toxins and wastes from the body. It includes several organs like your skin, lungs, liver, kidneys, digestive system, and immune system.

Interestingly, some research suggests that fasting may help your body with detoxification. In particular, studies show that fasting and caloric restriction may boost the activity of certain enzymes involved in your body's natural detoxification processes 1 2 3.

Fasting may also support liver health, aiding its role in detoxification 4 5.

However, most research in this area comes from animal studies, so it's unclear how much fasting enhances detox systems in humans. More human-based research is needed.

For healthy adults, optimal detoxification typically comes from a balanced lifestyle: a nutrient-rich diet, quality sleep, regular exercise, moderate alcohol intake, and avoiding smoking.

Summary

Some evidence suggests fasting may aid detoxification by boosting enzyme activity and supporting liver function. Nevertheless, your body's built-in detox system works best when you maintain a healthy lifestyle.

References

  1. Madeo F, Zimmermann A, Maiuri MC, Kroemer G. Essential role for autophagy in life span extension. J Clin Invest. 2015;125(1):85-93. Available from: https://pubmed.ncbi.nlm.nih.gov/28768896
  2. Longo VD, Mattson MP. Fasting: molecular mechanisms and clinical applications. Cell Metab. 2014;19(2):181-192. Available from: https://pubmed.ncbi.nlm.nih.gov/23230277
  3. de Cabo R, Mattson MP. Effects of intermittent fasting on health, aging, and disease. N Engl J Med. 2019;381(26):2541-2551. Available from: https://pubmed.ncbi.nlm.nih.gov/32160557
  4. Johari MI, Yusoff K, Haron J, Nadarajan C, Ibrahim KN, Wong MS, et al. A randomised controlled trial on the effects of intermittent fasting in non-alcoholic fatty liver disease. Sci Rep. 2019;9(1):1-10. Available from: https://pubmed.ncbi.nlm.nih.gov/30601864
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