FASTING: WATER ONLY HAS RISKS

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 FASTING: WATER ONLY HAS RISKS




Experts from the University of Sydney are warning anyone considering water-only fasting diets—especially those with heart or vascular problems—to check with their doctor first.

Water-only fasting has exploded in popularity on social media, promising quick weight loss to anyone willing to drink only water for days. However, new research published in Molecular Metabolism suggests that these diets carry serious risks for some people.

The international study team, led by Professor Luigi Fontana, tracked 20 volunteers through a 10-day water-only fast and a 5-day refeeding period. While participants lost about 7.7 percent on average and trimmed their waists by 6 percent, they also reported side effects like headaches, trouble sleeping, and low blood pressure.

Professor Fontana said the researchers initially thought prolonged fasting would lower inflammation. They found the reverse: fasting increased levels of pro-inflammatory proteins in the blood, which could spell trouble for people with existing heart or vascular conditions.

“People are searching for ways to manage their weight, and water-only fasting can seem dramatic and effective,” Fontana said. “But we really don’t know enough about the long-term effects, and for anyone with health concerns, particularly heart or vascular disease, we strongly recommend speaking to a doctor before trying it.”

The study did turn up one intriguing result: water fasting appeared to decrease amyloid beta proteins in the blood, which are tied to Alzheimer’s disease. The researchers say this could hint at possible brain-protective effects, but much more research is needed before concluding on long-term brain health.

Bottom line: Water-only fasting isn’t a quick fix for everyone, and it’s not risk-free, especially if you have underlying health issues. Talk to a medical professional before making any drastic changes to your diet.

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