HoldsUp

Dr. Eric Berg DC · 2026-08-28 · Eric Berg (host), Steve, Sura, Maria, Noelle

The Dr. Berg Show LIVE - August 28, 2026

28 research-tied claims examined: 4 contradicted 7 overstated 2 context 11 supported 4 unverified

4

Contradicted by research

0:33:28Eric Berg (host)contradictedhigh

High cholesterol in most people is caused by eating too many refined carbohydrates.

"what causes high cholesterol in most people is too many refined carbohydrates." (said at 0:33:28)

Dietary refined carbohydrates do not cause elevated total or LDL cholesterol (hypercholesterolemia). Extensive meta-analyses of randomized controlled feeding trials show that dietary saturated fatty acids and trans fatty acids, alongside polygenic and familial genetic factors, are the primary drivers of elevated LDL cholesterol. In contrast, replacing dietary fats with carbohydrates typically lowers or does not raise LDL cholesterol, but can increase fasting triglycerides, lower HDL cholesterol, and shift LDL particles toward a smaller, denser phenotype (the atherogenic dyslipidemia pattern associated with insulin resistance).

0:46:47Eric Berg (host)contradictedmoderate

Fasting before or after chemotherapy reduces side effects.

"there's some interesting data on fasting and just protecting your body against things, especially chemo. It lowers the side effects." (said at 0:46:47)

While preclinical animal studies and early pilot trials suggested that short-term fasting or fasting-mimicking diets might protect normal cells from chemotherapy toxicity (differential stress resistance), systematic reviews and meta-analyses of clinical trials in humans do not support the claim that fasting lowers chemotherapy side effects. A 2023 meta-analysis of clinical trials comparing fasting regimens to non-fasting during chemotherapy found no significant difference in overall side effects (RR = 1.10; 95% CI: 0.77–1.59) or neutropenia (RR = 1.33; 95% CI: 0.90–1.97). Subsequent systematic reviews and meta-analyses published in 2025 similarly found no statistically significant reduction in chemotherapy-related toxicities between fasting and non-fasting cancer patients.

0:49:24Eric Berg (host)contradictedmoderate

Benfotiamine is converted into a water-soluble form in the blood and does not cross the blood-brain barrier effectively.

"The problem with benfotiamine is it's good for peripheral neurological issues in your feet, but it quickly breaks down into a water-soluble in your in your blood mainly. So, it's not necessarily good for brain stuff." (said at 0:49:24)

The speaker's assertion that benfotiamine is not effective for central nervous system issues ("brain stuff") due to breakdown in the blood is contradicted by clinical and preclinical research. Preclinical studies demonstrate that oral administration of benfotiamine significantly increases thiamine diphosphate (ThDP) levels in key brain areas such as the hippocampus and entorhinal cortex while improving cognitive and metabolic markers. Furthermore, human clinical trials have demonstrated that oral benfotiamine is safe and potentially efficacious in slowing cognitive decline and improving brain metabolic outcomes in patients with mild cognitive impairment and Alzheimer's disease.

1:01:14Eric Berg (host)contradictedhigh

Spinal curvatures such as lordosis, kyphosis, or scoliosis are typically caused by weak bones from osteomalacia or rickets being pulled out of shape by muscles, and can be improved if caught early with adequate vitamin D and exercise.

"What typically creates lordosis or kyphosis or scoliosis is you have these weak bones, okay? It's like a uh osteomalacia it's called or even rickets. And then the muscles are pulling it out of shape and then we have this distorted thing. But if you can catch it in time and you you have enough vitamin D and then you do the right exercises, you can get some symmetry back there." (said at 1:01:14)

The claim that spinal curvatures such as scoliosis, kyphosis, or lordosis are typically caused by osteomalacia or rickets and can be corrected with vitamin D is contradicted by established medical literature. The vast majority of scoliosis cases are adolescent idiopathic scoliosis (AIS), which accounts for the vast majority of pediatric spinal deformities and has a complex, multifactorial etiology driven by genetic, neurohormonal, and biomechanical factors, not metabolic bone disease or nutritional deficiency. While severe untreated rickets or osteomalacia can cause skeletal deformities, they are rare causes of clinical spinal curves in the general population. Conservative management of idiopathic spinal deformities relies primarily on bracing and physiotherapeutic scoliosis-specific exercises (PSSE), rather than vitamin D supplementation.

7

Overstated

0:05:33Eric Berg (host)overstatedmoderate

St. John's wort has been shown to significantly improve both depression and anxiety.

"typically, yeah, St. John's wort has been shown to greatly improve not just depression but anxiety." (said at 0:05:33)

Extensive meta-analytic evidence supports the efficacy of St. John's wort (Hypericum perforatum) for mild-to-moderate depression, demonstrating symptom reductions comparable to standard selective serotonin reuptake inhibitors (SSRIs). However, systematic reviews and clinical guidelines evaluate the evidence for St. John's wort as a treatment for primary anxiety or anxiety disorders as insufficient and do not recommend it as an anxiolytic. Claiming that it has been shown to greatly improve anxiety alongside depression overstates the available clinical evidence.

0:17:26Eric Berg (host)overstatedhigh

Approximately 80% of the human population is colonized with Helicobacter pylori.

"80% of the population has this microbe and it normally is not bothering us." (said at 0:17:26)

Global systematic reviews and meta-analyses establish that approximately 43% to 50% of the world's population is colonized or infected with Helicobacter pylori, not 80%. While prevalence varies markedly by region and reaches 70% or higher in certain developing regions (such as parts of Africa), the worldwide average is substantially lower than 80% and has steadily declined over recent decades.

0:19:31Eric Berg (host)overstatedmoderate

Estrogen protects skeletal muscle tissue from being lost in women.

"What happens during perimenopause is you have this drop of estrogen. Estrogen is the thing that protects the the muscle uh from being lost." (said at 0:19:31)

While estradiol plays a biological role in muscle metabolism—acting via estrogen receptors to regulate mitochondrial function, satellite cell activity, and muscle protein turnover—attributing muscle mass preservation primarily to estrogen overstates its role. Observational and longitudinal studies (such as the ERMA cohort) demonstrate that the menopausal transition and declining estradiol are associated with decreases in lean and muscle mass. However, a 2019 systematic review and meta-analysis of 12 randomized controlled trials (4,474 postmenopausal women) found that hormone therapy did not produce a statistically significant preservation of lean body mass compared to controls (difference of 0.06 kg, 95% CI -0.05 to 0.18 kg). Mechanical loading via resistance training and adequate dietary protein remain the primary protective drivers of skeletal muscle maintenance.

0:32:43Eric Berg (host)overstatedlow

Berberine increases insulin sensitivity, functioning similarly to metformin but with fewer side effects.

"berberine mainly helps, um, make insulin more sensitive. So, it works like metformin in a way. Uh, it has less side effects." (said at 0:32:43)

The claim bundles two assertions. The first assertion—that berberine improves insulin sensitivity and has glucose-lowering effects comparable to metformin—is supported by randomized controlled trials and meta-analyses in type 2 diabetes and polycystic ovary syndrome (PCOS). However, the assertion that berberine has fewer side effects than metformin is overstated. Clinical trials and systematic reviews show that berberine causes a similar profile of adverse effects to metformin, primarily gastrointestinal symptoms such as diarrhea, constipation, nausea, flatulence, and abdominal discomfort (reported in up to ~35% of trial participants). Head-to-head evidence does not reliably demonstrate a clinically meaningful reduction in side effects compared to metformin.

0:53:12Eric Berg (host)overstatedmoderate

Iodine deficiency in an infant drops IQ by at least 12 points.

"If that infant is deficient in iodine, the IQ drops at least 12 points." (said at 0:53:12)

The claim is overstated. The figure of roughly 12 to 13.5 IQ points represents the average population-level deficit observed in severe endemic iodine deficiency (primarily driven by maternal deficiency during fetal neurodevelopment), not a guaranteed floor or minimum ("at least 12 points") for an individual infant. A systematic review and meta-analysis specifically evaluating children aged 5 years and under across randomized and cohort studies found average cognitive deficits ranging from 6.9 to 10.2 IQ points between iodine-deficient and iodine-replete children, depending on study design.

0:56:45Eric Berg (host)overstatedmoderate

Weight-bearing resistance training reverses osteoporosis in women.

"They've done uh a research uh study on women with osteoporosis doing weight training like loading the muscles and and they actually reverse osteoporosis." (said at 0:56:45)

High-intensity resistance training (such as the protocol evaluated in the LIFTMOR randomized controlled trial) and dynamic resistance exercise significantly improve bone mineral density (BMD) and avert postmenopausal bone loss. However, claiming it "reverses osteoporosis" is an overstatement of the magnitude of effect: trials and meta-analyses show modest improvements in BMD (typically in the range of ~1% to 3% at the lumbar spine and femoral neck) and bone geometry, which helps mitigate fracture risk and slow or partially improve bone loss, but does not completely restore osteoporotic bone back to normal reference ranges.

0:51:05Eric Berg (host)overstatedvery low

Evidence shows that supporting mitochondria with cofactors including vitamin B2, vitamin B3, and magnesium is beneficial in Parkinson's disease.

"There's been also evidence to show that supporting the mitochondria with cofactors like like vitamin B2 and vitamin B3 and magnesium are also super helpful in Parkinson's." (said at 0:51:05)

While mitochondrial dysfunction is a recognized pathological feature of Parkinson's disease, claiming that mitochondrial cofactors such as vitamin B2 (riboflavin), vitamin B3 (nicotinamide precursors), and magnesium are 'super helpful' overstates the available clinical evidence. Human evidence for riboflavin rests primarily on small, uncontrolled historical studies (e.g., an open-label cohort of 19 patients combining riboflavin with dietary red meat elimination) and preclinical models, with systematic reviews noting clinical application remains insufficiently defined. For vitamin B3 precursors (such as nicotinamide riboside in metabolic activator combinations), a randomized trial demonstrated modest cognitive changes but failed to show improvements in motor function. Robust, high-certainty clinical trial evidence demonstrating that these cofactors provide substantial clinical benefit in Parkinson's disease is lacking.

2

Needs context

0:36:14Eric Berg (host)needs contextmoderate

N-acetylcarnosine eye drops penetrate the eye and act as a decoy to prevent lens glycation in cataracts.

"You need the N-acetyl to drive it as a as a Trojan horse. It goes it pushes it through the eye in these drops. You can get them. You'll see them probably for dogs, but they have them for humans as well. So you put it on your eye, it goes into the eye, and it helps to, um, act as a decoy to to prevent this—it's called glycation—on the, uh, the lens." (said at 0:36:14)

The speaker accurately describes the biochemical rationale and prodrug design of N-acetylcarnosine (NAC): unmodified L-carnosine cannot effectively cross the cornea, so N-acetylation enables corneal penetration into the anterior chamber, where it is deacetylated to carnosine and can act as a sacrificial scavenger (decoy) against protein glycation and oxidative cross-linking in the lens. However, important context is required regarding clinical efficacy: a Cochrane systematic review concluded there is currently no convincing clinical evidence that NAC eye drops prevent the progression of or reverse age-related cataracts in humans.

1:03:20Eric Berg (host)needs contextmoderate

Dietary protein stimulates the secretion of glucagon, an opposing hormone to insulin that aids in weight loss.

"And you need high quality protein. Keep your protein in there. That's going to be important. It's going to stimulate uh something a hormone called glucagon, which then will help you also lose weight. It's the opposite of insulin." (said at 1:03:20)

The host's statement is fundamentally correct in its physiological direction, but requires qualification. Dietary protein and amino acids stimulate the release of glucagon from pancreatic alpha cells, a hormone that acts as a counter-regulatory opposing hormone to insulin. Glucagon receptor activation promotes energy expenditure and hepatic lipid metabolism, contributing to metabolic weight management. However, attributing protein-induced weight loss solely or primarily to endogenous glucagon secretion oversimplifies the process: postprandial dietary protein also stimulates insulin secretion (to maintain blood glucose homeostasis) along with gut satiety peptides (such as GLP-1 and PYY), and marked weight loss via glucagon receptor activation is primarily established through pharmacological glucagon receptor agonism rather than physiological dietary stimulation alone.

11

Supported by research

0:14:22Eric Berg (host)supportedhigh

The recommended dietary allowance (RDA) for vitamin B1 is 1.2 milligrams.

"the RDAs for B1 is like 1.2 milligrams." (said at 0:14:22)

The Recommended Dietary Allowance (RDA) for vitamin B1 (thiamine) is 1.2 mg daily for adult men and 1.1 mg daily for adult women, established by the Food and Nutrition Board of the National Academies of Sciences, Engineering, and Medicine.

0:18:31Eric Berg (host)supportedhigh

Helicobacter pylori survives in the stomach by secreting alkaline ammonia to neutralize stomach acid.

"the strategy for H. pylori to thrive is it releases ammonia into your body and ammonia is very alkaline. So it's changing the pH to more alkaline so it can actually survive better." (said at 0:18:31)

The statement accurately describes the primary survival mechanism of Helicobacter pylori. The bacterium expresses high levels of the urease enzyme, which hydrolyzes host urea into ammonia and carbon dioxide. The resulting basic ammonia buffers the surrounding gastric acid, raising the local pH in the bacterium's immediate microenvironment and periplasm toward neutrality, enabling it to survive the acidic stomach environment and colonize the gastric mucosa.

0:05:33Eric Berg (host)supportedhigh

Combining St. John's wort with an SSRI medication can adversely interfere with serotonin levels.

"you don't want to be on an SSRI and St. John's wort because that can mess with your serotonin." (said at 0:05:33)

Combining St. John's wort (Hypericum perforatum) with selective serotonin reuptake inhibitors (SSRIs) is a well-established and clinically significant pharmacodynamic drug interaction. Because both substances increase synaptic serotonin concentrations—St. John's wort via mild monoamine reuptake inhibition and other serotonergic mechanisms, and SSRIs via serotonin transporter inhibition—their concurrent use can cause excessive serotonergic activity leading to serotonin syndrome (serotonin toxicity), a potentially life-threatening condition.

0:14:22Eric Berg (host)supportedhigh

Allithiamine is a form of vitamin B1 derived from garlic.

"Allithiamine. It's a derivative from garlic. It's a natural B1." (said at 0:14:22)

Allithiamine is a naturally occurring lipid-soluble disulfide derivative of thiamine (vitamin B1) found in garlic (Allium sativum) and other plants of the Allium genus. It is formed via an enzymatic reaction when garlic bulbs are crushed or cut, combining thiamine with allicin/allyl disulfide components.

0:22:50Eric Berg (host)supportedhigh

Ingesting dietary fat triggers the contraction of the gallbladder to expel bile.

"the fat actually causes the contraction of that gallbladder to be able to push things through." (said at 0:22:50)

Dietary fat ingestion is a well-established physiological trigger for gallbladder contraction. Entry of digested lipids (particularly long-chain fatty acids) into the duodenum stimulates enteroendocrine I-cells to secrete cholecystokinin (CCK), which directly induces gallbladder smooth muscle contraction to empty stored bile into the small intestine.

0:26:15Eric Berg (host)supportedhigh

GLP-1 receptor agonist medications cause muscle loss and digestive problems as potential side effects.

"What are the potential side effects of GLP-1 medications? Muscle loss, digestive problems." (said at 0:26:15)

The claim accurately identifies documented side effects and body composition changes associated with GLP-1 receptor agonist (GLP-1 RA) medications. Clinical trials and systematic reviews demonstrate that gastrointestinal symptoms (such as nausea, vomiting, diarrhea, and constipation) are the most frequent adverse events associated with GLP-1 RAs. Additionally, systematic reviews and meta-analyses of randomized controlled trials show that weight loss from GLP-1 RAs includes a decrease in absolute lean mass/muscle tissue (typically accounting for 20% to 40% of overall weight lost), though fat mass reduction predominates and lean mass as a proportion of total body weight increases.

0:34:31Eric Berg (host)supportedhigh

During early lens development, lens cells eliminate all organelles including the nucleus to become transparent.

"in a normal early lens, you have all these organelles. But then what the lens has to do is purge all these organelles. It gets rid of even the nucleus. So why? So it can then you can see through it in a transparent way" (said at 0:34:31)

During lens development and terminal differentiation of lens fiber cells, cells undergo programmed degradation and elimination of all membrane-bound organelles—including mitochondria, the endoplasmic reticulum, the Golgi apparatus, and the cell nucleus—forming an organelle-free zone (OFZ). This process eliminates light-scattering structures and is essential for establishing optical transparency and proper refractive function in the vertebrate eye lens.

0:49:54Eric Berg (host)supportedlow

Allithiamine is a fat-soluble form of vitamin B1 that crosses the blood-brain barrier into the inner ear.

"there is a type of natural B1 called allithiamine, which is fat-soluble, which is great. It penetrates the brain, goes into the inner ear" (said at 0:49:54)

Allithiamine is a lipid-soluble (fat-soluble) thiamine disulfide derivative derived naturally from plants in the Allium genus (such as garlic). Unlike water-soluble thiamine salts or benfotiamine, lipid-soluble thiamine disulfide derivatives readily cross lipid membranes and the blood-brain barrier into central nervous system tissues.

0:54:50Eric Berg (host)supportedmoderate

Vitamin K2 MK-4 has a half-life of only four hours.

"MK-4 is also a good one to take if you have tartar on your teeth and and I'm not against taking that too, but realize the half-life is I think only four hours, so you have to take it through the day." (said at 0:54:50)

The statement is consistent with published pharmacokinetic data on vitamin K2 isoforms. Menaquinone-4 (MK-4, also known as menatetrenone) is rapidly absorbed and cleared from plasma with a short terminal elimination half-life of only a few hours (typically reported between 1.5 and 4 hours). Because of this rapid plasma clearance compared to longer-chain menaquinones such as MK-7 (which has a circulating half-life of several days), MK-4 requires multiple daily doses to maintain steady circulating concentrations.

0:31:24Eric Berg (host)supportedhigh

Diabetes is the leading cause of kidney destruction and kidney disease.

"The number one destroyer of the kidney is diabetes, which means high blood glucose is really bad for the kidney." (said at 0:31:24)

Extensive epidemiological data and nephrology literature establish that diabetes (and resulting diabetic kidney disease/diabetic nephropathy) is the leading cause of end-stage renal disease (ESRD) and a primary contributor to chronic kidney disease globally. Elevated blood glucose (hyperglycemia) drives metabolic, hemodynamic, and inflammatory pathways that cause progressive glomerular and tubular damage.

0:53:15Eric Berg (host)supportedmoderate

Vitamin D deficiency in infants can cause structural problems such as scoliosis, kyphosis, flat feet, and maxillary malformations requiring braces.

"If the the baby is deficient in vitamin D, there's could be structural problems. Scoliosis, flat feet, kyphosis such as hunchback or even maxillary uh problems around your mouth where you need the child needs braces." (said at 0:53:15)

Severe vitamin D deficiency in infants causes nutritional rickets, a metabolic bone disorder characterized by defective mineralization of the growth plates and osteoid matrix. Established pediatric guidelines and reviews confirm that severe, untreated deficiency results in progressive skeletal, spinal, and craniofacial deformities. Recognized manifestations include spinal curvatures (such as scoliosis and rachitic kyphosis/'cat back'), lower limb malformations, delayed dentition, and maxillofacial/dental abnormalities.

4

No source found (not proven false)

0:06:05Eric Berg (host)unverifiedlow

Vitamin D metabolism and efficacy are dependent on magnesium levels.

"vitamin D is dependent on magnesium. So, so in other words, vitamin D may not work if you don't have enough magnesium." (said at 0:06:05)

No published record matching the exact mechanism and clinical trials verifying the relationship between magnesium levels and vitamin D activation was successfully retrieved during verification; this does not prove the claim false. While biochemical literature generally establishes magnesium as an essential cofactor for the enzymatic conversion and transport of vitamin D (such as hepatic 25-hydroxylation and renal 1α-hydroxylation), specific clinical literature verifying the exact operational claims remains unverified in this check.

0:29:47Eric Berg (host)unverifiedvery low

The average human attention span is approximately 40 seconds.

"now it's right around 40 seconds. Okay, 40 seconds, not 40 minutes, 40 seconds. So, it's not that's on the average." (said at 0:29:47)

No published record matching the claim that the average human attention span is approximately 40 seconds was located; this does not prove the claim false.

0:31:54Eric Berg (host)unverifiedvery low

The nephron runs on ketones rather than glucose for its fuel.

"guess what fuel that nephron runs on? It doesn't run on glucose. It runs on ketones." (said at 0:31:54)

No published record matching the claim that the nephron runs on ketones rather than glucose for fuel was located; this does not prove the claim false.

1:00:13Eric Berg (host)unverifiedvery low

Taking vitamin D before and after travel alleviates jet lag by regulating circadian rhythms.

"Well, when you um have jet lag, one of the best antidotes for that is taking vitamin D before you before you go on the trip. And it really really works. And also taking vitamin D when you get on the other side of where you're flying. So, vitamin D is the antidote to anything related to jet lag. Um because you're actually affecting the circadian rhythms." (said at 1:00:13)

No published record matching the claim that taking vitamin D before and after travel alleviates jet lag by regulating circadian rhythms was located; this does not prove the claim false.

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.