The Claim
Patients with Hashimoto thyroiditis not receiving levothyroxine therapy exhibit higher levels of Lactobacillus in their gut microbiota compared to patients with Hashimoto thyroiditis who are receiving levothyroxine therapy.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
People with Hashimoto thyroiditis who are not taking levothyroxine have more Lactobacillus bacteria in their gut than those who are taking levothyroxine.
See the scientific wording
Patients with Hashimoto thyroiditis who are not receiving levothyroxine therapy have higher levels of Lactobacillus in their gut microbiota than those who are taking the medication, suggesting thyroid hormone replacement may influence gut bacterial composition.
When thyroid hormone levels are low, the gut moves food more slowly, creating conditions where Lactobacillus bacteria multiply too much. When thyroid hormone medicine is taken, gut movement returns to normal, and the environment becomes less favorable for Lactobacillus, so their numbers drop.
What the research says
1 studyPeople with Hashimoto’s who aren’t taking their thyroid medicine have more Lactobacillus bacteria in their gut than those who are taking it — and this study found that exact difference.
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.