The study also didn’t account for healthcare-seeking behaviour.

Vaccinated people tend to get tested more often → more diagnoses → not necessarily more illness.

Bottom line:
More recorded cases isn't necessarily a sign of weaker immune system.

We also consulted Prof. Helen Petousis-Harris, who highlighted major limitations.
Yes, the study found more common colds in people with 4+ doses,
but that same group had lower rates of flu-like illness and pertussis.
That pattern doesn’t fit the claim of “weakened immunity”.

Science Feedback spoke to Dr. Jihun Song, the first author.
Dr. Song stressed that the study was “an observational analysis of associations” and “cannot make causal claims about immune function”.

Curious about what the evidence does say?
Read the full review here ⬇️
science.feedback.org/review/vitam...

She added:
“More research is needed… We strongly encourage women to seek reliable, evidence-based health information through trusted sources.”

Ranee Thakar, president of the Royal College of Obstetricians and Gynaecologists (RCOG), told us:

“Evidence around using vitamin D to treat fibroids is limited and unclear… There’s no proven cause-and-effect relationship.”

High doses can lead to toxicity, including a higher risk of kidney stones.
Vitamin D is important, but yes, you can have too much of a good thing.

This report was produced in partnership with @newtral.es demagog.sk @pravdapl.bsky.social @checkfirst.network & Universitat Oberta de Catalunya (UOC)

What’s next?
A second measurement in early 2026 will track how these numbers evolve.
Follow us here for updates.
Download the full report (PDF) 👉 science.feedback.org/wp-content/uploads/2025/09/SIMODS-Report-1.pdf

Why it matters.
Under the EU’s Digital Services Act, platforms must show they’re mitigating systemic risks like disinformation.
This study gives the clearest independent benchmark yet to track compliance with the Code of Conduct.

One of our most striking findings: the misinformation premium

Across all platforms except LinkedIn, accounts spreading misinformation get more reach per follower than credible accounts

On YouTube: low-credibility accounts get 8x more interactions per follower than high-credibility ones

What we found:
⚠️ TikTok has the highest prevalence of misinformation:
20% of posts on public-interest topics contain false or misleading info.
Facebook is 2nd at 13%

LinkedIn has the lowest prevalence at just 2%, showing platforms can design systems that don’t reward falsehoods

Bottom line: DMSO has legitimate uses in medicine (like organ preservation), but it's not a cure-all.
Be cautious of claims that promise simple fixes for complex health issues.
🔗 science.feedback.org/beware-mirac...

DMSO has also been linked to alternative cancer treatments on social media. But Science Feedback found no credible evidence it works in humans, and its safety profile is still uncertain.

Mishra adds: safer, more effective options exist – like NSAIDs, paracetamol, or physical therapy. Using DMSO instead could pose unnecessary risks.

Recent posts on TikTok and X promote DMSO for pain relief. But as Medicines Lead Sailesh Mishra @facultypainmed.bsky.social notes, it’s “not a first-line or proven treatment” and may even carry toxins into the body.