Dr. Eric Berg DC · 2026-07-02 · Eric Berg (host), Steve, Natala, Tashia
The Dr. Berg Show LIVE - July 2, 2026
42 research-tied claims examined: 5 contradicted 8 overstated 8 context 16 supported 5 unverified
5 Contradicted by research
Red light therapy has no side effects.
"I really like red light therapy because um it's natural. It doesn't have any side effects." (said at 0:06:25)
While red light therapy (photobiomodulation) has a relatively favorable safety profile when used within established dosimetric parameters, the claim that it has 'no side effects' is contradicted by clinical evidence. Documented adverse effects in the literature include case reports of retinal injury, transient structural retinal abnormalities on optical coherence tomography (OCT), acute ocular hypertension/angle-closure events associated with at-home mask devices, as well as mild transient reactions such as erythema and irritation depending on device output and tissue exposure.
- contradicts: Repeated low-level red-light therapy for childhood myopia: Efficacy, mechanisms, rebound e… (Photodiagnosis and photodynamic therapy 2026)
"Clinical trial safety findings are generally reassuring, but case reports of retinal injury, transient optical coherence tomography (OCT) abnormalities, cone-level changes, and independent radiometric evaluations indicate that safety cannot be generalized across all red-light devices." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: Repeated low-level red-light therapy for myopia control: An update on efficacy and safety. (Taiwan journal of ophthalmology 2026)
"However, uncertainties persist regarding the clinical significance of observed structural changes, such as transient foveal hyperreflectivity and cystoid abnormality on optical coherence tomography, as well as functional changes on multifocal electroretinogram." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: A rare acute presentation of simultaneous bilateral angle closure in a patient using a red… (American journal of ophthalmology case reports 2026)
"To describe a case of acute-onset bilateral angle-closure glaucoma secondary to ciliochoroidal effusions in a 43-year-old otherwise healthy female. An autoimmune and inflammatory work-up was negative, and the patient was not on any medications or supplements. She had been using a red-light therapy (RLT) mask over the past two weeks, including the morning of her presentation." (abstract, results, passage verified)
pubmedfull study (doi)
Loss of estrogen during menopause is not a cause of cognitive problems or Alzheimer's disease.
"I would um double check and triple check any data that shows that a loss of estrogen relates to or causes any cognitive problems because that's false data." (said at 0:23:08)
The assertion that estrogen loss does not relate to cognitive problems or that such data is 'false' is contradicted by systematic reviews and meta-analyses of observational cohorts and clinical trials. Epidemiological evidence shows that premature cessation or decline of estrogen—such as from early menopause, premature ovarian insufficiency, or premenopausal bilateral oophorectomy (surgical menopause)—is associated with an increased risk of dementia, accumulation of Alzheimer's disease neuropathology, and accelerated decline in verbal memory, processing speed, and global cognition. Furthermore, randomized trials demonstrate that estrogen therapy initiated near the time of menopause or following surgical menopause can improve aspects of cognitive performance, such as verbal memory and global cognition.
- contradicts: Surgical menopause in association with cognitive function and risk of dementia: A systemat… (Psychoneuroendocrinology 2019) · cited 190x in the literature
"Surgical menopause at any age was associated with faster decline in verbal memory, semantic memory, and processing speed, whereas early surgical menopause was further associated with faster global cognitive decline. No heterogeneity was noted. Among women undergoing surgical menopause, a younger age at surgery was associated with faster decline in global cognition, semantic and episodic memory, worse performance in verbal fluency and executive function, and accumulation of Alzheimer's neuropathology." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: Early menopause and premature ovarian insufficiency are associated with increased risk of … (Maturitas 2023) · cited 48x in the literature
"Women with EM demonstrated a greater risk of dementia of any type than women of normal age at menopause (OR 1.37, 95 % CI 1.22-1.54; I 2 93%).... Increased risk of dementia was also found in women with POI (OR 1.18, 95 % CI 1.15-1.21; I 2 0%)." (abstract, results)
pubmedfull study (doi) - contradicts: Systematic review and meta-analysis of the effects of menopause hormone therapy on cogniti… (Frontiers in endocrinology 2024) · cited 76x in the literature
"While MHT had no overall effects on cognitive domain scores, treatment for surgical menopause, mostly estrogen-only therapy, improved global cognition (SMD=1.575, 95% CI 0.228, 2.921; P =0.043) compared to placebo. When initiated specifically in midlife or close to menopause onset, estrogen therapy was associated with improved verbal memory (SMD=0.394, 95% CI 0.014, 0.774; P =0.046), while late-life initiation had no effects." (abstract, results, passage verified)
pubmedfull study (doi)
Oral lichen planus is caused by a pathogenic microbe, fungus, or bacteria growing in the mouth.
"it's an uh it's a kind of a pathogenic microbe that is growing in the mouth. Um, thus the word oral. Um, so if we have a fungus or a mold or even a bacteria that is pathogenic in the mouth" (said at 0:29:17)
Oral lichen planus (OLP) is not an infection caused by a pathogenic microbe, fungus, mold, or bacterium growing in the mouth. Rather, it is a chronic, cell-mediated autoimmune inflammatory disorder driven primarily by T-lymphocytes targeting the oral mucosal epithelium. While oral micro-organisms have been studied as potential antigenic triggers or aggravating factors in some patients, OLP itself is classified as an autoimmune/inflammatory mucosal disease rather than a primary infectious process.
- contradicts: Oral Lichen Planus - Known and Unknown: a Review. (Folia medica 2018) · cited 80x in the literature
"Its aetiology remains unclear and the pathogenesis is still the object of much speculation. It is considered to be an autoimmune disorder mediated mainly by the T-lymphocytes." (abstract, background, passage verified)
pubmedfull study (doi) - contradicts: Evaluation of the Role of Oral Microbes in Pathogenesis of Oral Lichen Planus. (Journal of pharmacy & bioallied sciences 2024) · cited 7x in the literature
"The pathophysiology and etiology of oral lichen planus (OLP) are still unknown, despite the fact that the condition's progression has been connected to a T-cell-based immune response." (abstract, background, passage verified)
pubmedfull study (doi) - contradicts: Oral lichen planus: key features of etiopathogenesis, diagnosis, and management. (Acta dermatovenerologica Alpina, Pannonica, et Adriatica 2025)
"Oral lichen planus (OLP) is a chronic inflammatory autoimmune disease of unknown etiology." (abstract, background, passage verified)
pubmed
Insulin resistance is caused by a receptor shutdown driven by excessive insulin stimulation from high carbohydrate intake or frequent eating.
"what is insulin resistance, it's a it's a problem with the receptor for the insulin that is um it's shutting down. It won't let you absorb insulin or even glucose to the degree that you should. Why? Because there's been too much uh stimulus of insulin. So why? Because you've been eating too many carbs or eating too frequently" (said at 0:45:07)
The host's description mischaracterizes both the primary molecular mechanism and the established etiology of insulin resistance. In typical obesity- and diet-related insulin resistance, the defect is predominantly a post-receptor signaling impairment—driven largely by positive energy balance, ectopic lipid accumulation (such as cytosolic diacylglycerols activating novel protein kinase C isoforms), and impaired downstream intracellular signaling (e.g., IRS-1/PI3K/Akt pathway dysfunction preventing GLUT4 translocation)—rather than an insulin receptor 'shutting down.' Furthermore, tissues do not 'absorb insulin' to take up glucose; insulin binds cell-surface receptors to initiate signaling. Finally, insulin resistance develops primarily from chronic caloric excess and ectopic adiposity, not solely or directly from carbohydrate consumption or meal frequency.
- contradicts: Hepatic Diacylglycerol-Associated Protein Kinase Cε Translocation Links Hepatic Steatosis … (Cell reports 2017) · cited 162x in the literature
"Here, hepatic cytosolic diacylglycerol content, but not hepatic ceramide content, was increased in subjects with hepatic insulin resistance. Moreover, cytosolic diacylglycerols were strongly associated with hepatic PKCε activation, as reflected by PKCε translocation to the plasma membrane. These results demonstrate the relevance of hepatic diacylglycerol-induced PKCε activation in the pathogenesis of NAFLD-associated hepatic insulin resistance in humans." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: Mechanisms of Insulin Action and Insulin Resistance. (Physiological reviews 2018) · cited 2999x in the literature
"In this review, both the physiology of insulin action and the pathophysiology of insulin resistance are described, focusing on three key insulin target tissues: skeletal muscle, liver, and white adipose tissue... Finally, in section VIII, we propose an integrated model of insulin resistance that links these mediators to final common pathways of metabolite-driven gluconeogenesis and ectopic lipid accumulation." (abstract, results, passage verified)
pubmedfull study (doi)
Most medical doctors receive only 1.2 hours of nutrition training per year.
"most doctors only get 1.2 hours per year of nutrition training." (said at 1:00:32)
While nutrition instruction in medical training is widely recognized as inadequate, the specific claim that doctors receive only 1.2 hours of nutrition training per year is contradicted by published national curriculum surveys. In a comprehensive survey of U.S. medical schools by Adams and colleagues (published in Academic Medicine), medical students received an average of 19.6 contact hours of required nutrition instruction across their 4-year medical school curriculum (approximately 5 hours per year), down from 23.9 hours in earlier surveys. Although only 27% of medical schools met the National Academy of Sciences' recommended minimum of 25 total hours, the actual volume of training exceeds the claimed 1.2 hours per year.
Unverified means no publication matching the claim was located; it does not prove the claim false. Spotted an error? See the corrections policy - disputes from the people quoted are prioritized.