You have probably seen at least one of them this week. A glowing influencer with a green juice at 6 am. A fitness page insisting that cutting out every plant food healed their gut. A celebrity promoting a tea that "detoxes your liver in 28 days." For anyone frustrated with a health condition or stubborn weight, these claims land differently, they feel like a shortcut someone else already found.
MedBound Times took the most repeated claims about these three viral diet trends to three specialists. Mrs. Sharanya Guna, MSc Clinical Nutrition, has eight years of practice across diabetes and gut health. Dr. Aashirwad Pawar is a Diabetologist and Diabetes Educator at Sai Aashirwad Hospital, Mumbai. Dr. Vijaya Manikandan, BSMS, MHSM (Australia), is a Siddha Medicine Practitioner and Healthcare Quality Management Consultant in rural Tamil Nadu and a Consultant (Roster) at the WHO's Global Traditional Medicine Center.
Verdict: Short-term improvement, long-term risk. Blood sugar drops on any extreme diet. Without medical supervision, cutting carbs on diabetes medication can be life-threatening.
It is not that simple. Blood sugar can fall in the first week of almost any extreme diet, not necessarily because the underlying condition is improving, but because overall food intake drops sharply and the body burns through its stored energy reserves.
A 2026 scoping review of carnivore diet patterns notes that while short-term glycaemic improvements are reported, long-term safety data remain limited and inconsistent.
A drop in blood sugar that first week isn't a cure, it's the body reacting to eating far less. Diabetes management is a marathon of stability, not a sprint for a good week on the meter.Dr. Aashirwad Pawar, Diabetologist at Sai Aashirwad Hospital, Mumbai
The medication problem is where it gets dangerous. Patients on insulin or sulphonylureas who suddenly cut carbohydrates, without telling their doctor, keep taking the same drug dose. At the same time, they remove the glucose that dose was calibrated for. That mismatch creates a real risk of severe, unpredictable hypoglycaemia. The kind that lands people in hospital.
Beyond the glucose numbers, Dr. Vijaya Manikandan sees something patients rarely anticipate. After a month on the carnivore diet, she describes: "Bad breath, severe constipation, dry skin, dark urine, rising cholesterol and uric acid. What surprises patients most, though, is how their mood and sleep deteriorate. Remove all plant foods and you disrupt the gut bacteria responsible for producing serotonin, and that affects far more than digestion."
Reality check: Short-term glucose changes do not equal long-term disease reversal.
Verdict: The gut is not resting, it is being disrupted. Three days of juice shifts gut bacteria toward inflammation. The weight you lose is water. The light feeling comes from stopping alcohol and junk food, not from the juice.
A 2025 study from Northwestern University and San Raffaele University found that three days of juice-only consumption shifted gut and oral bacteria toward strains associated with inflammation and poorer brain health. Eating whole plant-based foods moved bacteria in the opposite direction.
The mechanism is straightforward. Juicing a fruit or vegetable leaves the fibre behind. That fibre is what feeds the beneficial bacteria in your gut. Without it, microbial balance shifts, and high free sugar intake can favour less beneficial bacterial strains.
People think they are giving their gut a break. What they are actually doing is disturbing a balance that took years to build.Mrs. Sharanya Guna, MSc Clinical Nutrition
As for the two or three kilos that disappear in three days, that is almost entirely water, not fat. The body stores carbohydrates as glycogen, and glycogen holds water. Cut the carbs, glycogen drains, water follows it out. The scale drops fast. Eat normally for a couple of days and the whole thing refills. Mrs. Sharanya Guna is blunt: "The weight loss looks real. It is not."
That lighter feeling mid-cleanse? Dr. Vijaya has a simple explanation: you stopped the alcohol, the late-night snacking, and the fried food. The liver responds to that relief within 48 to 72 hours. The feeling is real. The juice had nothing to do with it.
For South Asian patients specifically, Dr. Pawar flags an additional concern: "Higher baseline insulin resistance means a juice cleanse doesn't detox anything, it creates a metabolic overload. Fruit sugar, no fibre, flooding in fast. That is the opposite of helpful."
Reality check: Rapid weight loss during cleanses is mostly water, not fat.
Verdict: Herbal does not mean safe. Detox teas are unregulated, have contained hidden prescription drugs, and the senna in many of them can trigger dangerous heart rhythm problems, particularly for anyone on diabetes or blood pressure medication.
This one matters most, because the harm here is most serious and misunderstood.
In most countries, including India and the US, detox teas are classified as food supplements. That means no pre-market safety testing before they reach shelves. The US FDA has pulled products found to contain undisclosed prescription drugs, including a case where an antidepressant turned up in a marketed weight loss tea. Lab testing has confirmed undisclosed prescription drugs, including steroids and painkillers inside commercially sold detox teas. In documented cases, patients were hospitalised before anyone knew what they had actually consumed.
Senna is the ingredient worth watching for. It is a stimulant laxative, and its "cleansing" effect is simply the rapid expulsion of fluid and electrolytes, potassium included. Dr. Pawar does not mince words: "Many diabetic patients are already on blood pressure medication or diuretics that affect potassium. Stack senna on top and you can push potassium to a level where the heart beats irregularly. That is not a detox theory. That is a hospital visit."
Dr. Vijaya sees it weekly in her Siddha Zone clinic in Tamil Nadu: " Patients with severe muscle cramps, extreme tiredness, classic signs of senna-induced low potassium. Often from teas where senna is not even listed on the label."
Liver damage is documented too. Published research covering 2004 to 2014 found herbal supplement-related liver injuries nearly tripled over that decade. A separate case report describes acute liver failure in a 60-year-old woman who drank a commercial "liver detox" tea three times daily for two weeks.
Then there is the vocabulary problem. Brands put names like Nilavembu and Triphala on labels to borrow the credibility of traditional medicine. Dr. Vijaya is precise: "Nilavembu is contraindicated in pregnancy and in people with low blood sugar. Triphala has over 200 peer-reviewed studies behind it and a precise classical formulation. Listing it on a wellness box is not Siddha practice, it is branding."
A qualified AYUSH doctor checks a patient's full health picture before prescribing anything. A detox tea skips every one of those steps. Siddha detox is a prescription with contraindications. A detox tea is a product with a label.Dr. Vijaya Manikandan, BSMS, MHSM (Australia) | Consultant (Roster), GTMC, WHO
Reality check: “Herbal” products can still carry pharmacological and toxic effects.
Before buying any wellness or detox product, three checks take less than five minutes each.
Check the FSSAI number. Find it on the label and verify it at fssai.gov.in. If the product claims to be a traditional AYUSH medicine, it needs a Schedule T manufacturing licence under the Drugs and Cosmetics Act. No verifiable number, no purchase.
Read the ingredient list properly. "Proprietary blend" means the manufacturer is not disclosing what is inside or in what amounts. A full list with individual quantities is non-negotiable. If they will not show you what you are drinking, they are selling marketing.
Check whether the claim is even legal. Food products in India cannot claim to treat, cure, or cleanse a specific organ. If the product makes those claims and is sold only through a social media link with no registered company behind it, that is already a violation of FSSAI guidelines.
If you decide to try a new diet that you saw or heard somewhere, use this checklist before you decide.
If you are on medication for diabetes, blood pressure, thyroid, or cholesterol: speak to your doctor before changing what you eat. The interaction between diet and medication is real, manageable, and worth one conversation.
“Here is the thing” says Dr. Aashirwad Pawar, who manages diabetic patients daily, “blood sugar often drops in the first week of any extreme diet simply because you are eating far less overall. That is not the disease getting better, that is calorie restriction doing what it always does, temporarily. The real danger is what happens to your medication. If you are on insulin or sulphonylureas and you suddenly stop eating carbohydrates, those drugs keep working at the same dose. There is nothing for them to act on. The result can be a severe, unpredictable drop in blood sugar that lands people in hospital. No change to a diabetic diet should happen without a doctor adjusting your medication first.”
“This is something I hear every week”, explains Dr. Vijaya Manikandan “you felt better because of what you stopped doing, not what you started drinking. When people begin a cleanse, they also stop the alcohol, late-night snacking and fried food. The liver feels that relief within 48 to 72 hours. That lighter feeling is real, it just has nothing to do with the juice. The juice itself, stripped of fibre, was actually shifting your gut bacteria in the wrong direction the entire time.”
“It is a definite no” says Mrs. Sharanya Guna. “Particularly for South Asian patients who already tend to have higher baseline insulin resistance. Whole fruit keeps its fibre, which slows down how quickly the natural sugars hit the bloodstream. The moment you juice it, that protection is gone. The sugar goes straight in, fast. For someone whose body is already struggling to manage glucose, a day of juice is not a reset, it is a repeated spike, several times over.”
“Honestly, it depends on what else you are taking” expresses Dr. Pawar. “Senna is a stimulant laxative, it works by pushing fluid and electrolytes out of the body rapidly, and potassium goes with them. This is a real cardiac concern in diabetic patients, many of whom are already on blood pressure medication or diuretics that also affect potassium. Stack a senna tea on top of that and you can push potassium to a level where the heart starts beating irregularly. That is not a theoretical risk, hospitalisation cases have been documented in published medical literature.”
“Not at all” explains Dr. Vijaya Manikandan. “Genuine Siddha practice involves a physician assessing your body type, your current health, your medications, your age, and the season before prescribing anything herbal. The herb, the dose, and the duration are all individualised. A commercial detox tea does none of that, it uses the same formula for everyone, lists Triphala or Nilavembu on the label to sound credible, and skips every safety check the traditional system was built around. The ingredients may be real. The practice is not.”
Dr. Vijaya, who works as a quality management consultant in addition to her clinical practice, recommends three checks that take under five minutes.
First, find the FSSAI licence number on the label and verify it at fssai.gov.in, if it is not there or does not check out, stop.
Second, look for a complete ingredient list with individual quantities listed. If it says "proprietary blend" anywhere, that means the manufacturer has chosen not to tell you what is inside or how much.
Third, if the label or the social media post selling it claims to treat, cure, or cleanse a specific organ, that is an illegal health claim under Indian food law and a signal to walk away.
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Expert opinions in this article are the professional views of the contributors, for educational purposes only. They do not constitute medical advice and should not replace guidance from a qualified healthcare professional.