# What doesn't hold up Published by Pawel Jozefiak. [About this project](https://adhd100.jock.pl/about/), [How we check sources](https://adhd100.jock.pl/methodology/) - Canonical: https://adhd100.jock.pl/doesnt-hold-up/ - Language: en - First published: 2026-09-29 - Evidence checked: 2026-09-29, using AI-assisted source verification Popular claims and products for ADHD that the trials do not back. Not ranked, not tailored. ## Sugar causes ADHD - Verdict: Not supported - How sure: Not rated Sugar has not been established as a cause of ADHD, and blinded trials do not show a general worsening of behaviour. Across 23 blinded sugar challenge studies in children, a meta-analysis found no clear effect on behaviour or cognition, though it could not exclude small effects in some children. A 2026 review did find associations between sugary diets and ADHD outcomes, but confounding and the limited number of studies that isolate sugar rule out a causal conclusion. The older trials address immediate effects, not whether years of eating sugar influence how ADHD develops. What holds up instead: [Make regular meals easier](https://adhd100.jock.pl/regular-balanced-meals/), [Request your child's ADHD assessment](https://adhd100.jock.pl/seek-child-adhd-assessment/) - [The effect of sugar on behavior or cognition in children. A meta-analysis](https://pubmed.ncbi.nlm.nih.gov/7474248/), JAMA, 1995 - [Dietary Carbohydrates and ADHD Symptoms: A Systematic Review](https://pmc.ncbi.nlm.nih.gov/articles/PMC13209895/), Nutrients, 2026 ## ADHD is caused by bad parenting - Verdict: Not supported - How sure: Not rated ADHD is a developmental condition. Blaming parents doesn't explain it. NIMH says genes play a large role and ADHD probably comes from a combination of factors, and the NHS says it often runs in families. An NHS trust leaflet for parents points out that parents of children with ADHD can be wrongly accused of bad parenting, and explains that support and behaviour management skills help at home. Family circumstances can affect how a child copes, but that does not make ADHD a parental failure. What holds up instead: [Ask about parent behaviour training](https://adhd100.jock.pl/seek-parent-behaviour-training/) - [Attention Deficit/Hyperactivity Disorder: What You Need to Know](https://www.nimh.nih.gov/health/publications/attention-deficit-hyperactivity-disorder-what-you-need-to-know), NIMH, 2024 - [An introduction to ADHD](https://www.kentcht.nhs.uk/leaflet/an-introduction-to-adhd/), Kent Community Health NHS Foundation Trust, 2023 - [ADHD in children and young people](https://www.nhs.uk/conditions/adhd-children-teenagers/), NHS, 2025 ## Omega-3 fish oil supplements treat ADHD - Verdict: No better than placebo - How sure: Low certainty In trials with children and teens, omega-3 and other fatty acid supplements did no better than placebo on parent-rated ADHD symptoms. A 2023 Cochrane review of 37 trials found no difference from placebo in parent-rated total ADHD symptoms over the medium term, and rated that result high certainty. The 2025 EBI reanalysis, 15 trials involving 963 young people, found an effect close to zero at low certainty. A hint that more children might be rated as improved rests on only three trials, also low certainty, so it does not make supplements an established treatment. What holds up instead: [Check omega 3 claims before buying](https://adhd100.jock.pl/omega-three-expectations/), [Book your treatment review](https://adhd100.jock.pl/book-regular-treatment-review/) - [Polyunsaturated fatty acids (PUFA) for attention deficit hyperactivity disorder (ADHD) in children and adolescents](https://www.cochrane.org/evidence/CD007986_polyunsaturated-fatty-acids-pufa-supplements-attention-deficit-hyperactivity-disorder-adhd-children), Cochrane, 2023 - [Benefits and harms of ADHD interventions: umbrella review and platform for shared decision making](https://pmc.ncbi.nlm.nih.gov/articles/PMC12651917/), BMJ, 2025 - [Supplementary materials for EBI-ADHD](https://corentinjgosling.github.io/EBI-ADHD-UR-2025/), Gosling et al., EBI-ADHD team (BMJ 2025 supplement), 2025 ## You will grow out of ADHD - Verdict: Not supported - How sure: Not rated Symptoms can ease or come and go, but growing up does not reliably bring a permanent recovery. In the MTA follow-up of 558 children with ADHD, only 9.1% were in sustained remission at the young-adult endpoint, and 63.8% went through fluctuating periods of remission and recurrence. They were a clinical childhood cohort, so those percentages are not a forecast for every child. NIMH confirms that symptoms often continue into adulthood. What holds up instead: [Plan the move to adult ADHD care](https://adhd100.jock.pl/plan-transition-adult-care/), [Ask for an adult ADHD assessment](https://adhd100.jock.pl/seek-adult-adhd-assessment/) - [Variable Patterns of Remission From ADHD in the Multimodal Treatment Study of ADHD](https://pubmed.ncbi.nlm.nih.gov/34384227/), American Journal of Psychiatry, 2022 - [Attention Deficit/Hyperactivity Disorder: What You Need to Know](https://www.nimh.nih.gov/health/publications/attention-deficit-hyperactivity-disorder-what-you-need-to-know), NIMH, 2024 ## Taking prescribed stimulants leads to later addiction - Verdict: Not supported - How sure: Not rated Prescribed treatment has not been linked to more substance misuse later. Misusing stimulants is a separate risk. In a Swedish register study of 38,753 people with ADHD, those prescribed ADHD medication showed no increase in later substance abuse, counted as substance-related deaths, crimes or hospital visits, and their rate was 31% lower. A meta-analysis of 15 longitudinal studies with 2,565 participants found that childhood stimulant treatment neither raised nor lowered the risk of later substance use problems. Both are observational, so neither can prove protection, and misusing or sharing medication is a separate risk worth raising with the prescriber. What holds up instead: [Discuss substance risk with your team](https://adhd100.jock.pl/discuss-substance-risk-treatment/), [Book your treatment review](https://adhd100.jock.pl/book-regular-treatment-review/) - [Stimulant ADHD medication and risk for substance abuse](https://pubmed.ncbi.nlm.nih.gov/25158998/), Journal of Child Psychology and Psychiatry, 2014 - [Stimulant medication and substance use outcomes: a meta-analysis](https://pubmed.ncbi.nlm.nih.gov/23754458/), JAMA Psychiatry, 2013 ## Homeopathy treats ADHD symptoms - Verdict: No better than placebo - How sure: Very low certainty ADHD trials haven't found a benefit beyond the control treatment, and the evidence is very uncertain. Cochrane found no convincing improvement in core ADHD symptoms. The 2025 EBI reanalysis, two short term comparisons involving 63 children, found an effect close to zero, with a wide confidence interval and very low certainty. So a benefit has not been demonstrated, which is not the same as proving every possible effect has been excluded. What holds up instead: [Ask for a diagnosis explanation](https://adhd100.jock.pl/request-adhd-psychoeducation/) - [Homeopathy for ADHD](https://www.cochrane.org/evidence/CD005648_homeopathy-adhd), Cochrane, 2007 - [Benefits and harms of ADHD interventions: umbrella review and platform for shared decision making](https://pmc.ncbi.nlm.nih.gov/articles/PMC12651917/), BMJ, 2025 - [Supplementary materials for EBI-ADHD](https://corentinjgosling.github.io/EBI-ADHD-UR-2025/), Gosling et al., EBI-ADHD team (BMJ 2025 supplement), 2025 ## Brain training apps reliably treat overall ADHD symptoms - Verdict: Not supported - How sure: Low certainty Training can improve the skills you practise without reliably improving overall ADHD symptoms. Across seven trials involving 395 young people, the EBI reanalysis found no clear short term improvement in overall symptoms rated by teachers, with low certainty. A separate synthesis found working memory gains and small improvements in inattention that depended on the setting, but no clear benefit for total ADHD symptoms. All of this is about cognitive training, not every digital therapy or practical reminder app. What holds up instead: [Make time visible](https://adhd100.jock.pl/external-time-cues/), [Capture tasks in one place](https://adhd100.jock.pl/single-task-inbox/) - [Computerized cognitive training in attention-deficit/hyperactivity disorder (ADHD): a meta-analysis of randomized controlled trials with blinded and objective outcomes](https://pmc.ncbi.nlm.nih.gov/articles/PMC10208955/), Molecular Psychiatry, 2023 - [Benefits and harms of ADHD interventions: umbrella review and platform for shared decision making](https://pmc.ncbi.nlm.nih.gov/articles/PMC12651917/), BMJ, 2025 - [Supplementary materials for EBI-ADHD](https://corentinjgosling.github.io/EBI-ADHD-UR-2025/), Gosling et al., EBI-ADHD team (BMJ 2025 supplement), 2025 ## Neurofeedback is a proven treatment for ADHD symptoms - Verdict: Not supported - How sure: Low certainty The benefit people report when they know about the treatment does not consistently show up in blinded symptom ratings. The 2025 meta-analysis found no meaningful overall symptom benefit when assessors were thought to be unaware of treatment allocation, although trials using established standard protocols showed a small benefit. Across ten youth trials involving 587 participants, EBI found no clear short term benefit in teacher ratings, with low certainty, while parent ratings, from parents who knew about the treatment, did improve, with very low certainty. None of this rules out every individual benefit, but it does not establish neurofeedback as a reliable standalone ADHD treatment. What holds up instead: [Ask for a diagnosis explanation](https://adhd100.jock.pl/request-adhd-psychoeducation/) - [Neurofeedback for Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis](https://pmc.ncbi.nlm.nih.gov/articles/PMC11800020/), JAMA Psychiatry, 2025 - [Benefits and harms of ADHD interventions: umbrella review and platform for shared decision making](https://pmc.ncbi.nlm.nih.gov/articles/PMC12651917/), BMJ, 2025 - [Supplementary materials for EBI-ADHD](https://corentinjgosling.github.io/EBI-ADHD-UR-2025/), Gosling et al., EBI-ADHD team (BMJ 2025 supplement), 2025 ## A strict elimination diet treats ADHD - Verdict: Unclear - How sure: Very low certainty Some children may respond, but a restrictive diet as a matter of routine is not established ADHD treatment. EBI combined four short term trials involving 218 young people: the average estimate was large, but the confidence interval included no benefit and certainty was very low. Earlier blinded analyses also failed to establish a general benefit from broad elimination diets, though some dietary studies selected children with suspected food sensitivities. Individual responses remain possible, but that is no evidence that everyone with ADHD should cut out whole food groups. What holds up instead: [Make regular meals easier](https://adhd100.jock.pl/regular-balanced-meals/) - [Benefits and harms of ADHD interventions: umbrella review and platform for shared decision making](https://pmc.ncbi.nlm.nih.gov/articles/PMC12651917/), BMJ, 2025 - [Supplementary materials for EBI-ADHD](https://corentinjgosling.github.io/EBI-ADHD-UR-2025/), Gosling et al., EBI-ADHD team (BMJ 2025 supplement), 2025 - [Nonpharmacological interventions for ADHD: systematic review and meta-analyses of randomized controlled trials of dietary and psychological treatments](https://pubmed.ncbi.nlm.nih.gov/23360949/), American Journal of Psychiatry, 2013 - [ADHD in children and young people](https://www.nhs.uk/conditions/adhd-children-teenagers/), NHS, 2025 ## Removing food colouring treats ADHD - Verdict: Unclear - How sure: Not rated Small effects in some children are plausible. A reliable benefit for every child has not been established. A meta-analysis found a small average effect of synthetic food colours in parent ratings, which shrank after adjusting for possible publication bias, and no clear effect in the overall teacher or observer analysis. Some attention tests and selected analyses did show effects, and a separate review found a benefit from excluding colours that held up in blinded ratings, but mostly in children selected for suspected food sensitivity. A change in a subgroup doesn't show that food colouring explains ADHD generally. What holds up instead: [Make regular meals easier](https://adhd100.jock.pl/regular-balanced-meals/) - [Meta-Analysis of Attention-Deficit/Hyperactivity Disorder or Attention-Deficit/Hyperactivity Disorder Symptoms, Restriction Diet, and Synthetic Food Color Additives](https://pmc.ncbi.nlm.nih.gov/articles/PMC4321798/), Journal of the American Academy of Child and Adolescent Psychiatry, 2012 - [Nonpharmacological interventions for ADHD: systematic review and meta-analyses of randomized controlled trials of dietary and psychological treatments](https://pubmed.ncbi.nlm.nih.gov/23360949/), American Journal of Psychiatry, 2013 ## Only boys have ADHD - Verdict: Not supported - How sure: Not rated Girls and women have ADHD too, and their less visible difficulties can be missed. In US survey data for 2022 to 2023, 7% of girls had an ADHD diagnosis against 13% of boys. NHS guidance notes that girls may have more inattentive symptoms, which are harder to recognise. Diagnosis rests on persistent symptoms and impairment, not on fitting the stereotype of a disruptive boy. What holds up instead: [Ask for an adult ADHD assessment](https://adhd100.jock.pl/seek-adult-adhd-assessment/), [Request your child's ADHD assessment](https://adhd100.jock.pl/seek-child-adhd-assessment/) - [Data on ADHD in Children](https://www.cdc.gov/adhd/data/index.html), CDC, 2026 - [ADHD in children and young people](https://www.nhs.uk/conditions/adhd-children-teenagers/), NHS, 2025 ## Caffeine is an effective ADHD treatment - Verdict: Not supported - How sure: Not rated Small trials in children haven't established a symptom benefit, and they can't establish caffeine as an effective adult treatment. A 2023 review found seven small randomised trials involving 104 children, and four of those trials, with 76 participants, fed the overall symptom meta-analysis. That analysis found no clear difference from placebo, although individual findings varied. Evidence this small, all from children, does not justify using caffeine in place of clinician-guided ADHD care, or assuming the same result has been established in adults. What holds up instead: [Review caffeine and sleep together](https://adhd100.jock.pl/caffeine-sleep-review/) - [Effects of Caffeine on Main Symptoms in Children with ADHD: A Systematic Review and Meta-Analysis of Randomized Trials](https://pubmed.ncbi.nlm.nih.gov/37759905/), Brain Sciences, 2023 - [Attention Deficit/Hyperactivity Disorder: What You Need to Know](https://www.nimh.nih.gov/health/publications/attention-deficit-hyperactivity-disorder-what-you-need-to-know), NIMH, 2024 ## A TikTok symptom list can tell you that you have ADHD - Verdict: Not supported - How sure: Not rated A relatable video can prompt useful questions. It cannot establish a diagnosis. In a 2022 study of 100 popular ADHD TikTok videos, clinicians classed 52% as misleading, 27% as personal experience and 21% as useful, and those figures describe that sample, not all TikTok content. A 2025 analysis also found that fewer than half of the symptom claims in its sample matched diagnostic criteria. A clinical assessment weighs childhood onset, impairment in multiple settings and alternative explanations, none of which a relatable symptom list can establish. What holds up instead: [Check ADHD claims before sharing](https://adhd100.jock.pl/check-adhd-claims-online/), [Ask for an adult ADHD assessment](https://adhd100.jock.pl/seek-adult-adhd-assessment/) - [TikTok and Attention-Deficit/Hyperactivity Disorder: A Cross-Sectional Study of Social Media Content Quality](https://pmc.ncbi.nlm.nih.gov/articles/PMC9659797/), Canadian Journal of Psychiatry, 2022 - [A double-edged hashtag: Evaluation of #ADHD-related TikTok content and its associations with perceptions of ADHD](https://pmc.ncbi.nlm.nih.gov/articles/PMC11922258/), PLOS ONE, 2025 - [Attention Deficit/Hyperactivity Disorder: What You Need to Know](https://www.nimh.nih.gov/health/publications/attention-deficit-hyperactivity-disorder-what-you-need-to-know), NIMH, 2024 ## A genetic panel can pick the best ADHD medicine for your child - Verdict: Not supported - How sure: Not rated Promises of broad medication matching go beyond the evidence, though specific genetic results can sometimes inform prescribing. The AAP guideline does not recommend pharmacogenetic tools for choosing ADHD medication, because their clinical usefulness has not been established. A narrower exception is CYP2D6 information for atomoxetine metabolism, where CPIC gives guidance on interpreting a result someone already has. That specific link does not validate a commercial panel promising to identify the best ADHD medicine, and medication decisions still need a prescriber and clinical monitoring. What holds up instead: [Plan titration with your clinician](https://adhd100.jock.pl/plan-clinician-led-titration/) - [Clinical Practice Guideline for the Diagnosis, Evaluation, and Treatment of Attention-Deficit/Hyperactivity Disorder in Children and Adolescents](https://pmc.ncbi.nlm.nih.gov/articles/PMC7067282/), American Academy of Pediatrics, 2019 - [Clinical Pharmacogenetics Implementation Consortium Guideline for CYP2D6 Genotype and Atomoxetine Therapy](https://pmc.ncbi.nlm.nih.gov/articles/PMC6612570/), Clinical Pharmacology and Therapeutics, 2019 ## Magnetic brain stimulation is a proven ADHD treatment - Verdict: Unclear - How sure: Very low certainty Small studies have not shown a reliable overall symptom benefit from rTMS. The EBI reanalysis of four short term adult trials involving 118 participants found an effect close to zero on self-rated symptoms, with a wide confidence interval and very low certainty. A separate sham-controlled meta-analysis found no clear overall benefit, but reported possible improvements in inattention and with particular stimulation targets. Those signals still need confirming, and they do not establish rTMS as routine ADHD care. What holds up instead: [Ask for a diagnosis explanation](https://adhd100.jock.pl/request-adhd-psychoeducation/) - [Benefits and harms of ADHD interventions: umbrella review and platform for shared decision making](https://pmc.ncbi.nlm.nih.gov/articles/PMC12651917/), BMJ, 2025 - [Supplementary materials for EBI-ADHD](https://corentinjgosling.github.io/EBI-ADHD-UR-2025/), Gosling et al., EBI-ADHD team (BMJ 2025 supplement), 2025 - [A meta-analysis of randomized sham-controlled trials of repetitive transcranial magnetic stimulation for attention deficit/hyperactivity disorder](https://pmc.ncbi.nlm.nih.gov/articles/PMC11559844/), Brazilian Journal of Psychiatry, 2024 - [Comparative efficacy and acceptability of pharmacological, psychological, and neurostimulatory interventions for ADHD in adults: a systematic review and component network meta-analysis](https://pubmed.ncbi.nlm.nih.gov/39701638/), The Lancet Psychiatry, 2025 ## Chiropractic adjustments treat ADHD symptoms - Verdict: Not supported - How sure: Not rated There is no good evidence it improves symptoms, and a recent small trial found no advantage over sham adjustments. A systematic review found no eligible trials of good enough methodological quality to establish benefit for children with ADHD. In a later pilot trial, 67 children were randomised and 56 were analysed, and adjustments plus usual care showed no significant symptom differences from sham adjustments plus usual care. The trial was small, so it cannot rule out every effect, but it does not establish chiropractic treatment for ADHD. What holds up instead: [Ask for a diagnosis explanation](https://adhd100.jock.pl/request-adhd-psychoeducation/) - [Chiropractic care for paediatric and adolescent Attention-Deficit/Hyperactivity Disorder: A systematic review](https://pmc.ncbi.nlm.nih.gov/articles/PMC2891800/), Chiropractic and Osteopathy, 2010 - [The effects of chiropractic adjustment on inattention, hyperactivity, and impulsivity in children with attention deficit hyperactivity disorder: a pilot RCT](https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2024.1323397/full), Frontiers in Psychology, 2024 --- General information about ADHD, not a diagnosis or an individual treatment plan. Tailoring changes the order of suggestions; it does not assess you. Medication decisions belong with you and a qualified clinician. Report an error: meet@jock.pl Reuse: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/