The Claim
In adults with high baseline copeptin levels (>10.7 pmol/L for men, >6.1 pmol/L for women) and low habitual water intake, consuming an additional 1.5 liters of water daily for six weeks is associated with a reduction in fasting plasma glucose and a decrease in fasting plasma copeptin.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
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Adults with high copeptin levels and low water intake who drink an extra 1.5 liters of water per day for six weeks have lower fasting blood glucose and lower fasting copeptin levels.
See the scientific wording
In adults with high baseline copeptin levels (>10.7 pmol/L for men, >6.1 pmol/L for women) and low habitual water intake, consuming an additional 1.5 liters of water daily for six weeks is associated with a reduction in fasting plasma glucose and a corresponding decrease in fasting plasma copeptin, suggesting that increased water intake may modulate glucose metabolism in this specific subgroup.
Drinking more water lowers the body's stress hormone signal, which tells the brain to stop activating the stress response system. This reduces the release of a hormone that tells the liver to make more sugar, so blood sugar levels drop.
What the research says
1 studyIn people who drink very little water and have high levels of a stress-related hormone called copeptin, drinking an extra 1.5 liters of water a day for six weeks lowered both that hormone and their blood sugar. This suggests drinking more water might help regulate blood sugar in this group.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.