Evaluating Health and Medical Claims Online: A Step-by-Step Guide for Singapore Readers

A mother in Toa Payoh opened WhatsApp on a Tuesday evening and heard a voice note, already forwarded four times, claiming a specific children's paracetamol had been banned in Europe and was causing liver damage. The note ended with a phrase anyone in group chats knows: 'They don't want you to know this. Forward to every parent you know.' She almost did. But she had spent the morning scrolling Instagram and had seen a post about spotting health falsehoods in Singapore. Instead of forwarding, she opened a new tab and went to HealthHub. The first search result showed the claim was a rehash of a 2019 rumour HSA had already debunked. The medicine was fine. The forwarding was the only thing causing damage.

Leave The Chat And Open A New Tab

The single most reliable way to handle a forwarded medical warning is not to read it more carefully. It is to leave the note and open a new tab. This is lateral reading, and fact-checkers use it to beat everyone else at spotting falsehoods. When you evaluate a health claim, your first move is never to judge the source of the note you received. It is to check whether the claim appears anywhere credible outside the bubble of the chat thread. For evaluating health medical claims online Singapore, the two tabs you want open are HealthHub (healthhub.sg), run by MOH, and the WHO Mythbusters page, which addresses global health rumours as they spread.

Search for the condition and the treatment named, not the company or the politician quoted. If the note says a drug causes a rare side effect, search the drug name and the side effect. If it says a food cures a disease, search the food and the disease. The results split into two groups. The first comes from health authorities, peer-reviewed journals, and hospital systems. The second comes from blogs, forum posts, and sites with domains like healthhub-sg.com designed to look official. When the second group clogs the results and the first group is silent, you have your answer.

Why Institutional Silence Is Your Answer

Genuine medical information propagates through institutional channels before it reaches your phone. A real HSA warning appears on the HSA website and gets covered by mainstream news. A real MOH advisory sits on HealthHub and MOH's official Telegram. When a claim has not touched any of those sources, it is not hidden information. It is absent information. The Malaysian Health Ministry, the US CDC, and the Australian TGA have different rules, but they share one habit: when a drug is dangerous, they say so publicly. The absence of a credible source naming the danger is itself the finding.

You do not need a medical degree to sort a health rumour from a genuine advisory. You need a list of recurring patterns. Health hoaxes are not creative. They reuse the same rhetorical moves, and once you can name the moves, the note loses its power.

The Miracle Cure And The Appeal To Nature

The first red flag is the miracle cure. A note that promises a treatment for multiple unrelated diseases, or that claims a single substance reverses ageing, cures cancer, and boosts immunity, is describing magic. Real treatments have narrow indications and a list of things they do not do.

The second red flag is the appeal to nature. Claims that something is healthy because it is 'natural' or 'chemical-free' commit the naturalistic fallacy. Arsenic is natural. Botox is natural. The dose is what matters, and the word 'natural' tells you nothing about safe dosage or contraindications with prescription drugs.

Conspiracies And Missing Contraindications

The third red flag is the conspiracy framing. 'The FDA does not want you to know', 'Big Pharma is suppressing this', 'They are burying this study'. These all share one structure. They tell you the evidence is being hidden, which conveniently excuses the total absence of evidence in the note.

The fourth red flag is the absence of dosage and the absence of contraindication. A genuine medical instruction tells you how much to take, how often, and who should not take it. A note that says 'take this herb for your pain' but never says how much, or says 'this is safe for everyone' is not medical advice. It is a cargo cult. A true advisory names the population it excludes: not for children under two, not for pregnant women, not for people on blood thinners. When that list is missing, the note has not been through any review process. A reviewer would have demanded those details.

HSA maintains a short list of phrases that appear on illegal health product advertising: 'quick fix', 'miracle cure', 'scientifically proven', '100% safe', 'no side effects'. Notice these are all certainty words. Real medicine is probabilistic. It says 'this works in 70% of patients' and 'this can cause liver damage in rare cases'. Certainty is the tell. A note that promises certainty is selling something.

WhatsApp attaches a label to notes that have been forwarded through a chain: 'Forwarded many times'. That label is not a technical glitch. It is a structural feature that should change how you read. When you see it, you know no one in your immediate circle actually wrote the note. You are looking at content that has survived at least five hops, which means it has been edited, misattributed, and stripped of context at every step. A forwarded-as-received note is the primary vector for falsehoods in Singapore, more than any website or post, because it arrives with the implicit endorsement of a trusted person who sent it to you.

The Four-Step Verification Routine

The verify routine is simple. First, screenshot the note or copy the key claim. Second, open a new tab and search for a distinctive phrase, one unusual enough to be unique. Third, add the word 'MOH' or 'HSA' or 'Singapore' to the search. If a government agency has addressed this claim, it will be on the first page. Fourth, check the date. Health rumours resurface cyclically. A warning about a drug side effect from 2019 is not a warning about a new danger in 2026. It is an old rumour circulating again.

The Infertility Claim That Broke In Two Minutes

There is a specific case that demonstrates why this works. In 2021, during the COVID-19 vaccination drive, a note circulated on WhatsApp claiming the vaccine caused infertility in women. It cited a 'Stanford doctor' and included a screenshot of a letter. The claim spread widely enough that the Institute of Policy Studies ran a survey measuring belief in COVID-19 falsehoods. Their working paper found that roughly 20% of respondents believed at least one COVID-19 falsehood. The infertility claim was among them. When you search the claim, what do you find? A statement from MOH, a fact-check from the WHO, and articles from mainstream outlets. The 'Stanford doctor' turned out to be a physician with no expertise in reproductive health whose claims were contradicted by the evidence. The lateral reading method exposed it in under two minutes.

HealthHub is the government's official health information portal, run by MOH, and it has a dedicated section for common health myths. When you search 'HealthHub fact check health claim', you are looking for that section. The HealthHub A-Z index includes a 'Health Myths' category that addresses common falsehoods, from the idea that vaccines cause autism to the belief that you only need to drink water when you are thirsty. MOH also maintains a page specifically about vaccine falsehoods, at moh.gov.sg/covid-19/vaccination/misinformation, which lists common false claims and the evidence against them.

Why You Must Search, Not Wait

These pages are updated on an irregular schedule. Health falsehoods do not follow a calendar, and neither do the rebuttals. A page that was accurate in January may be outdated by March if a new rumour surfaces. Treat the HealthHub myth page as a starting point, not an endpoint. If you cannot find your specific claim on HealthHub, search the HSA consumer alerts page, which lists illegal health products and adverse event reports. Then check the MOH social media accounts. The MOH official accounts are on Facebook, Instagram, and Telegram, and they post rebuttals when falsehoods are circulating.

There is a structural limit to what these sources can do. A fact-check page that publishes a rebuttal has a limited reach. The people who saw the original false note have moved on. The fact-check only helps if it is seen by people who are looking for it. Do not expect the rebuttal to come to you. It will not. The algorithm that showed you the false claim will not show you the rebuttal, because the rebuttal does not generate the same engagement. A public health agency wants you to be healthy. It is trying to reach you, but it is fighting an uneven battle.

The World Health Organization publishes a page called MythBusters: a running list of health claims that have been examined and found false. The WHO uses a specific set of red flags that apply not just to COVID-19 rumours but to all health falsehoods. When you see these markers, be suspicious before you even check the facts.

Missing Studies And Anecdotal Evidence

The first WHO red flag is the absence of a cited study. A genuine health claim can point to a peer-reviewed study or a clinical trial. A false claim often says 'studies show' or 'research proves' without naming the study, the institution, or the journal. The second red flag is anecdotal evidence. A testimonial from a person who claims to have been cured is not evidence of a cure for anyone else. The placebo effect is real and powerful, and it is precisely why doctors do not rely on individual stories.

Tradition And Correlation Errors

The third red flag is the appeal to tradition. 'People have used this for thousands of years' sounds convincing, but it is a logical fallacy. The fact that a practice is old does not mean it is safe or effective. Bloodletting was old too. The fourth red flag is the correlation-versus-causation error. A study that finds a link between two variables does not prove one causes the other. A study might find that people who drink green tea have lower rates of heart disease. The green tea is correlated with heart health, but the causation may be that people who drink green tea also exercise more, eat better, and avoid smoking. The claim 'green tea prevents heart disease' overstates the finding. 'Green tea is associated with lower risk of heart disease' is accurate. The difference matters.

Finally, the WHO warns against the appeal to authority when that authority is fabricated or irrelevant. A note that says 'a doctor recommends this' is meaningless if the doctor is not named, or if the doctor is not an expert in the relevant field. A note that claims to be verified by the Singapore Police Force or by MOH is easy to check: go to the official website and look for the advisory. If it is not there, it is not real. The actual endorsement is never a secret.

The National Library Board has a four-step framework for information literacy called S.U.R.E., which stands for Source, Understand, Research, Evaluate. It was launched in 2013 and is embedded in Singapore's school curriculum and public libraries. It gives you a repeatable sequence to apply to any health claim.

Source: Who is the author of the claim? Is it a government agency, a hospital, a pharmaceutical company, or a random person on a forum? If the source is an individual or a blog with no credentials, treat the claim with suspicion. A forwarded note does not have an author in the way a news article does. It has a chain of forwarders, and none of them is the original source. Source transparency is the first thing to check.

Understand: Do you actually understand what the claim is saying? Medical claims are often written in vague language that is hard to pin down. If you cannot explain the claim in your own words in a way that is specific enough to test, you do not understand it, and you should not share it. A claim like 'this herb boosts your immune system' is untestable because 'boosts' is meaningless. A claim like 'this herb reduces the duration of the common cold by one day' is testable. The latter is the kind of claim that would appear in a peer-reviewed study.

Research: This is the lateral reading step. Open new tabs. Search for the condition and the treatment. Look for information from independent sources that are not quoting each other. A single source that confirms your claim is not enough. You need multiple independent confirmations from credible institutions. This step exposes the vast majority of health falsehoods, because false claims rarely survive contact with the scientific literature.

Evaluate: Weigh the evidence. Does the claim fit with what you know about how the body works? Does it explain the mechanism? Does it account for the dose? Medical claims that are true can be traced back to a plausible biological mechanism. Claims that are false rely on magic thinking. Evaluate the quality of the evidence, not just its existence.

A 2021 working paper from the Institute of Policy Studies surveyed Singaporeans about COVID-19 falsehoods and found that approximately 20% of respondents believed at least one falsehood. That is a concrete number, and it should frame how you think about this problem. It is not a fringe issue. One in five people in Singapore believed a piece of health falsehood during the pandemic. The chance is high that someone you forwarded a note to in the past year has received a correction from you, or should have received one.

The Echo Chamber And The Correction Gap

The same research found that belief in falsehoods was not evenly distributed. It was higher among people who primarily got their news from social media and messaging apps, and lower among people who read newspapers and watched mainstream television news. This is the echo chamber effect. When your information diet consists of algorithmically curated content, you encounter falsehoods more often. The algorithm optimises for engagement, not accuracy. A health rumour is more engaging than a health fact. It provokes fear, anger, or excitement, and those are the emotions that drive shares.

There is also a structural problem with how corrections work. A study on correction reach found that a correction published in a small outlet is seen by far fewer people than the original falsehood. The original note might be shared thousands of times. The correction might be read by a fraction of that audience. This is not because the correction is weak. It is because the correction does not have the same virality. It does not arrive in a WhatsApp chain. It does not get 'forwarded many times'. This is why your personal behaviour matters. When you receive a note that you have verified as false, the most impactful thing you can do is not forward it. The second most impactful thing is to reply to the person who sent it with a link to the HealthHub or HSA page that debunks it.

Q: How can I check if a health supplement is approved by HSA?

HSA does not approve or register health supplements. It regulates them under the Health Products Act. You cannot look up a supplement in a registry to see if it is 'approved'. Instead, be more careful. If a supplement makes medical claims, it is an illegal health product. Report it to HSA.

Q: I keep seeing before-and-after images in health ads. Are they real?

Often not. These images are frequently stock photos, AI-generated, or taken in different lighting and after different amounts of sleep and water intake. Use a reverse image search tool like Google Lens or TinEye to see where else the image appears. If the same face appears in a different ad with a different name, it is fake.

Q: Is it safe to follow health advice from a video on social media?

No. A video is not a source. Anyone can make a video. A person claiming to be a doctor on TikTok is not necessarily a doctor. If they are a doctor, verify them on the Singapore Medical Council's register of medical practitioners. If they are not on the register, their medical advice is not regulated.

Q: What is the difference between a POFMA direction and a fact-check?

A POFMA direction is a legal order to correct or remove an online falsehood. A fact-check is an article that explains why a claim is false. POFMA can compel a correction. A fact-check cannot. If you see a POFMA correction notice, the government has used its legal powers. If you see a fact-check, a news outlet has done the work voluntarily. Both are useful, but they are different tools.

Q: How do I talk to a friend or family member who keeps sharing health falsehoods?

Do not mock them. Do not say 'I told you so'. Instead, ask a question. 'Where did you see that?' Then offer to check it together. Search for the claim on HealthHub while they watch. When you find the rebuttal, present it as a shared discovery, not as a victory over them. The goal is to keep the relationship, not to win the argument. Once you win an argument and lose a friend, you have both lost.

It is 1am. You are in bed, scrolling through your phone, and a note arrives from your uncle's group chat. It claims a popular painkiller has been linked to a rare but fatal side effect. It cites a 'study from the National University of Singapore' that you cannot find anywhere. The note is long, detailed, and has already been forwarded five times. What do you do?

Do not forward it. That is the hard rule. Do not forward it even to your partner, even to your mother, even with a warning. A warning is not enough. The forward itself carries your name, and your name now endorses the claim. Do nothing with the note except save it to your notes. Then close the app.

The Morning Check

In the morning, you have a plan. Open a new tab, go to HealthHub, and search the name of the drug and the side effect. Also search the HSA consumer alerts page. Check the date on the note. If it is from three years ago, it is an old rumour. Check the source. If the 'study' is not on PubMed or published in a peer-reviewed journal, it does not exist in the scientific literature. Check the language. Does it use words like 'miracle', 'cover-up', or 'they don't want you to know'? If yes, it is a fabrication.

When You Cannot Find A Definitive Answer

If you cannot find a definitive answer in the morning, you have another option: the HSA adverse event reporting system. If you suspect a health product is causing harm, report it directly to HSA. This is a real pathway, not a gesture. HSA investigates adverse events and issues safety alerts when they find a problem. If the claim is true, HSA will confirm it. If the claim is false, the absence of an HSA alert is your answer.

There is one more failure case: the note is in a language you do not read well. It may be in Chinese or Malay and you only have a partial understanding. Do not rely on a translation provided in the note itself. The translation is part of the manipulation. Instead, copy a distinctive phrase and run it through a search engine with the word 'MOH' or 'HSA'. Machine translation is good enough to tell you whether the claim is about a medicine, a food, or a device. From there, search in English for the specific product name. The core claim will be the same in any language, and the fact-checking institutions publish in English.

You now have a method, a set of red flags, and a list of official sources. But you will still be fooled sometimes. You will share something that turns out to be false, and you will feel embarrassed, and you will be tempted to delete the note and pretend it never happened. Do not do that. Correct yourself publicly. Reply to the thread with the correction and say 'I checked this and it is not true'. The people who respect you will respect you more for it. The people who do not respect you were not going to anyway.

The honest caveat is this: the tools you use today will not work tomorrow. The specific red flags will change, the AI-generated images will get better, and the fake experts will get more sophisticated. The one thing that will not change is the underlying skill: the willingness to open a new tab and check before you share. That skill is permanent. Use it every time.