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

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.

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.