The phrase represents a specific type of dietary regimen, a water fast conducted over a five-day period, and a popular online forum, Reddit, where individuals discuss their experiences, seek advice, and share information related to this practice. The intersection highlights a digital community centered around the pursuit of health or wellness through restricted caloric intake, consuming only water for sustenance, and leveraging a social media platform for support and information exchange.
Such practices, while potentially yielding certain physiological effects such as weight loss or metabolic changes, carry inherent risks. The importance of this online discourse lies in providing a space for shared experiences and peer support, but the information exchanged should not be considered a substitute for professional medical advice. Historically, fasting has been utilized for religious or spiritual purposes; its contemporary application often revolves around perceived health benefits. The benefits might include cellular autophagy and improved insulin sensitivity, but long-term effects and individual suitability require careful consideration.