Additionally, a meta-analysis from the University of Southern California found that occasional fasting can significantly reduce body weight compared to standard diets.

Further research is necessary to isolate the effects of fasting from other factors contributing to weight loss and health improvements.

A recent study published in BMJ Nutrition, Prevention & Health suggests that carbonated water may influence blood sugar levels, potentially aiding in weight loss.

However, researchers, including Professor Sumantra Ray, caution that more well-designed human studies are needed to confirm any significant link between carbonated water and glucose metabolism.

The study indicates that the impact of CO2 from sparkling water on blood sugar levels is minimal, with only 9.5 grams of sugar utilized after four hours of dialysis, comparable to one tablespoon.

Experts generally affirm that drinking plain sparkling water is safe for hydration, though it may cause gas and bloating in some individuals.

A separate study from National Taiwan University indicates that intermittent fasting may enhance metabolic health.

This limited effect is further illustrated by comparing the consumption of fizzy water to the haemodialysis process, where approximately 48,000 ml of blood is processed with minimal glucose usage.

Stable blood sugar levels may assist in more efficient fat burning, which is particularly relevant for individuals monitoring their blood sugar, such as users of the Zoe device by Dr. Tim Spector.

Despite these findings, Dr. Akira Takahashi, the study's author, emphasizes that carbonated water should not replace a balanced diet and regular exercise.

Researchers also drew parallels with kidney dialysis, noting that CO2 mechanisms can help lower blood sugar levels during treatment.

Concerns about the acidic nature of sparkling water include its potential impact on dental health, as carbonation can weaken tooth enamel, although it is less harmful than sugary drinks.