Drinking Refined Deep-Sea Water: Impact on Gut Ecosystem & Intestinal Health

Drinking Refined Deep-Sea Water: Impact on Gut Ecosystem &  Intestinal Health

News Release, International Society of Microbiota, France – April 6, 2022

World health trends are focusing on a balanced food and beverage intake for healthy life. Refined deep-sea water (RDSW), obtained from deep-sea water collected offshore in Muroto (Japan), is mineral-rich drinking water. 

Knowing that drinking RDSW improves human gut health, Takeuchi et al, analyzed the effect of drinking RDSW on the gut ecosystem to understand this effect.
In a randomized double-blind controlled trial, ninety-eight healthy adults were divided into two groups: RDSW or mineral water (control).
  1. The participants consumed 1 L of either water type daily for 12 weeks.
  2. A self-administered questionnaire and stool and urine samples were collected through the intervention.
The following results were determined: fecal biomarkers of secretory immunoglobulin A (sIgA), five putrefactive products, and nine short-chain-fatty-acids (SCFAs) as the primary outcomes; and three urinary isoflavones and the questionnaire as secondary outcomes.
  • In post-intervention in the RDSW group, we found increased concentrations of five SCFAs and decreased concentrations of phenol and sIgA .
  • The multiple logistic analysis demonstrated that RDSW significantly affected two biomarkers (acetic and 3-methylbutanoic acids) of the five SCFAs mentioned above.
  • The concentrations of urinary isoflavones tended to increase in post-intervention in the RDSW group. Constipation was significantly alleviated in the RDSW group (94%) compared with the control group (60%).

In conclusion, drinking RDSW was found to improve the intestinal environment by increasing fecal SCFAs and urinary isoflavones, which leads to broad beneficial effects in human.

Remember that you can also share your research related to this topic by sending us your abstracts.

Read more about the trial.

© Image -frimufilms, freepik

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International Society of Microbiota


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