Supplements
What may help fill real gaps, and what is mostly hype.
Arnold Schwarzenegger said“Eat enough protein and keep lifting, and you hold on to your muscle as you age.”
The science saysStrongly supported. Protein plus resistance training is one of the best-proven ways to protect aging muscle.
Verdict: Real, and worth copying.
Jennifer Aniston said“A daily scoop of collagen peptides keeps your skin, hair, and joints younger.”
The science saysPartly true. Trials show collagen can help skin, but the strongest results come from industry-funded studies, and the hair and joint case is thin.
Verdict: It works on skin. It also works for the company she runs.
Halle Berry said“The ketogenic diet reversed my health problems and slows down my aging.”
The science saysHalf right. Keto can lower blood sugar in the short term, but 'reversed it' is a louder claim than the trials will sign off on.
Verdict: Keto earns a B. 'Reversed it' is grading on a curve.
Gwyneth Paltrow said“A long daily intermittent fast, coffee then bone broth, keeps me well and detoxed.”
The science saysOverstated. Intermittent fasting works about as well as simply eating less, with no special detox or longevity magic.
Verdict: Skipping breakfast is a tool, not a detox spell.
David Sinclair said“Taking resveratrol every day helps slow down human aging.”
The science saysNot established in people. Resveratrol extended life in mice on a rich diet, but human trials and a failed drug program never showed the benefit.
Verdict: Spectacular in a mouse, unproven in a professor.
Bryan Johnson said“A strict protocol of food, sleep, exercise, and more than one hundred daily supplements can measurably slow how fast you age.”
The science saysNot established. The basics help, but slowing human aging with a large supplement stack is unproven, and a routine of one person cannot prove it works for anyone else.
Verdict: Measure all you want. The anti-aging headline is running ahead of the evidence.
Novak Djokovic said“Cutting out gluten transformed my health and my game.”
The science saysRefuted for non-celiacs. A blinded trial in athletes without celiac disease found cutting gluten changed nothing; the gains came from losing weight and cleaning up the diet.
Verdict: A backhand to broscience: blind the bread, and the body never noticed.
Dr. Mehmet Oz said“Green coffee bean extract is a magic weight-loss cure for every body type.”
The science saysRefuted. The only supporting trial was tiny, industry-funded, and later retracted, and the FTC penalized the sponsor.
Verdict: The magic bean's one study vanished faster than the promised pounds.
Liver King said“Eating raw liver and living ancestrally built this physique, naturally.”
The science saysRefuted. There is no evidence raw organ meat beats cooked, it adds infection risk, and he later admitted steroids built his body.
Verdict: The liver didn't build the King. The needle did.
Sylvester Stallone said“Hard training, high protein, and growth hormone keep you strong past forty.”
The science saysHalf right. Lifting and protein genuinely preserve aging muscle, but the growth hormone he credits is unproven for anti-aging and carries real risks.
Verdict: The barbell earned the physique. The growth hormone is renting it back.
Kim Kardashian said“I would try anything to look younger, including the vampire facial.”
The science saysWeak. The one real trial of the vampire facial found people liked their results, but dermatologists saw no objective improvement over a saline placebo.
Verdict: She'd try anything. The vampire facial is mostly placebo with a copay.
Suzanne Somers said“Bioidentical hormones can reverse the aging process.”
The science saysRefuted. Specialist societies find no evidence that compounded bioidentical hormones reverse aging or are safer than standard hormones, and warn the risks can outweigh benefits.
Verdict: Two decades of bestsellers, still no evidence.
Salma Hayek said“Hayek says periodic juice cleanses act like a meditation that resets her health and steers her toward eating better.”
The science saysWeak: there is very little clinical evidence that juice cleanses or 'detoxes' remove toxins or improve health beyond what the body already does.
Verdict: Her body already runs a 24-hour detox for free; the juice mostly buys her a mindset, not a cleanse.
Kourtney Kardashian said“Kardashian says spiking her filtered water with liquid chlorophyll lets her 'multitask' by hydrating while getting nutrients food cannot always supply.”
The science saysA systematic review found only sparse, low-quality human data on chlorophyll supplements; there is no good evidence that adding it to water improves hydration, nutrition or longevity.
Verdict: Harmless and photogenic, but 'nutrients you can't get from food' is doing far more work than the evidence allows.
Megan Fox said“Fox said she drank water mixed with raw apple cider vinegar to cleanse out her system entirely.”
The science saysWeak and mostly refuted: there is no good evidence that apple cider vinegar cleanses the body, and the only weight-related data come from a single small trial.
Verdict: The body detoxes itself through the liver and kidneys, not vinegar, so this is a habit that grades on hope more than evidence.
Kelly Clarkson said“Clarkson says reading The Plant Paradox and cutting out lectins fixed her thyroid and autoimmune issues and got her off medication.”
The science saysWeak and largely unsupported: no trials show lectin-free diets treat thyroid or autoimmune disease, and the legumes and whole grains the diet bans are tied to lower mortality.
Verdict: An individual feeling better after a diet change is real, but crediting lectins, and stopping thyroid medicine, runs well ahead of any evidence.
Miranda Kerr said“Kerr says she starts each day with cold-pressed celery juice on an empty stomach followed by a Medical Medium 'Heavy Metal Detox' smoothie.”
The science saysWeak: there is no credible evidence that celery juice or 'detox' smoothies remove heavy metals or toxins, work the liver and kidneys already do.
Verdict: It's a harmless, vitamin-rich drink, but the 'detox' label is marketing, not medicine.
Kate Hudson said“Hudson says the more collagen she can get, the better, to replace what her aging skin loses.”
The science saysShort randomized trials suggest oral collagen peptides can modestly improve skin hydration and elasticity, but the data are small, short-term and often industry-funded, and nothing shows collagen extends life.
Verdict: Low-risk and maybe nice for skin, but 'more is better' overstates what thin, short-term trials actually show.
Miley Cyrus said“Cyrus says she left veganism and reintroduced fish and omega-3s because a plant-only diet had left her brain not functioning properly.”
The science saysWeak and overstated: there is little evidence that a few fish meals quickly sharpen a healthy young brain, though plant-based eaters do need a reliable EPA/DHA source.
Verdict: The omega gap is real, but fish is the fix she reached for, not the fix the evidence requires.
Kelly Ripa said“Ripa credits a periodic alkaline diet and cleanse, built around green powders and vegetables, with changing her life and how she thinks about food.”
The science saysWeak: any real benefit comes from eating more vegetables, not from an 'alkalizing' effect, because the body tightly regulates blood pH and diet does not meaningfully change it.
Verdict: The vegetables are doing the work her body's pH was never going to outsource to a green powder.
Demi Moore said“Moore said that leech therapy she underwent as part of an Austrian cleanse detoxifies the blood and optimizes health.”
The science saysThere is no evidence that leeches, or any cleanse, detoxify blood; medicinal leech therapy has been studied for knee osteoarthritis pain, which is a different claim entirely.
Verdict: The leeches are real and medically regulated; the detox is not.
Orlando Bloom said“Bloom says he starts his day with green powders mixed with brain octane oil, a collagen powder for his hair and nails, and protein.”
The science saysCollagen peptides have some trial support for skin, but there is little rigorous evidence that green powders or MCT oil improve hair, nails, brain function, or energy.
Verdict: A tidy, expensive stack that outruns its evidence: mostly harmless, mostly unproven for what it promises.
Elle Macpherson said“Macpherson says eating an alkaline diet keeps her body lighter, cleaner and full of energy.”
The science saysWeak: the body tightly regulates its own blood pH, and systematic reviews find no good evidence that an alkaline diet prevents disease or changes health outcomes.
Verdict: Eating your greens is great; the pH story bolted onto it isn't what makes it work.
Gary Brecka said“Brecka presents drinking hydrogen-rich water as a top-tier daily longevity intervention.”
The science saysSmall human trials show a narrow, modest effect on fatigue and short-burst power, and nothing that would justify calling it a longevity intervention.
Verdict: Real chemistry, real small studies, and a marketing claim several sizes too big for both.