HoldsUp

Ben Bikman

Dr. Ben Bikman is a metabolic health specialist who focuses on metabolic dysfunction and insulin resistance. His work examines how lifestyle factors such as diet, exercise, and sleep influence metabolic health and can help reverse insulin resistance. He also evaluates the use and impact of weight loss medications, including Ozempic and other GLP-1 agonists.

96 claims checked on air: 17 context 13 contradicted 9 overstated 48 supported 9 unverified

What they said on air - overstated

0:40:08overstatedmoderateDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

Carbohydrates account for roughly 70% of total calories consumed globally and about 60% in the United States.

"70% of all calories consumed globally, it's about 60% in the US, are carbohydrates." (said at 0:40:08)

Nationally representative dietary data demonstrate that the proportion of total calories derived from carbohydrates is substantially lower than stated, particularly for the United States. Analysis of National Health and Nutrition Examination Survey (NHANES) cycles from 1999 to 2016 found that carbohydrates accounted for 50.5% of total energy intake in US adults (down from 52.5% in 1999), not ~60%. Globally, carbohydrate intake varies widely by country and economic development—ranging from under 50% in parts of North America and Europe to over 65% in low-income regions—making a blanket global estimate of 70% an overstatement of the worldwide average.

0:43:15overstatedlowDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

Lowering insulin levels increases adipose tissue metabolic rate and mitochondrial uncoupling in humans.

"We found in human work that part of it is because the fat tissue starts having a much higher metabolic rate when insulin comes down. There's much more mitochondrial uncoupling." (said at 0:43:15)

The assertion overstates the findings of the human literature. While preclinical rodent experiments demonstrate that chronic hyperinsulinemia reduces mitochondrial uncoupling and respiration in adipose tissue, the human data from this research group evaluated the effects of ex vivo ketone (β-hydroxybutyrate) exposure on biopsied human subcutaneous adipose tissue, which increased mitochondrial respiration without increasing ATP production. Direct evidence establishing that lowering insulin in humans increases whole-tissue adipose metabolic rate via mitochondrial uncoupling in vivo is preliminary and primarily extrapolated from cell culture, rodent models, and ex vivo tissue assays.

0:57:30overstatedlowDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

Hyperglycemia activates the sympathetic nervous system and raises core body temperature.

"one of the most common causes of being too hot is hyperglycemia. Most people don't appreciate that. When your blood glucose levels spike, you you activate your sympathetic nervous system." (said at 0:57:30)

Acute increases in glucose levels do stimulate sympathetic nervous system activity and contribute to diet-induced thermogenesis (energy expenditure and heat production), mediated in part by central autonomic pathways. However, characterizing hyperglycemia or glucose spikes as 'one of the most common causes of being too hot' is overstated, as postprandial thermogenesis produces only modest changes in body heat compared to typical causes of feeling overheated (such as environmental heat, physical exertion, vasomotor symptoms, fever, or thyroid disorders).

1:01:04overstatedmoderateDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

In an isocaloric study where protein was clamped, subjects consuming a high-carbohydrate breakfast experienced a more rapid return of hunger and ate more calories at their subsequent meal compared to those consuming a low-carbohydrate breakfast.

"and they looked at breakfast and the name of the article was something like more rapid return of hunger. It was something like return to hunger was in the title. And if the breakfast, isocaloric breakfast, so same number of calories, protein was clamped, and it just differed in the ratio of fats to carbs, the high-carb group was hungrier much sooner and then ate more for their next meal than the low-carb group." (said at 1:01:04)

The speaker accurately identifies the specific study titled 'Return of hunger following a relatively high carbohydrate breakfast is associated with earlier recorded glucose peak and nadir' (Diaz et al., 2014). In this controlled trial of 64 overweight adults, subjects received isocaloric breakfasts with protein clamped at 18% of calories, differing only in carbohydrate and fat content (55% carb / 27% fat vs. 43% carb / 39% fat). As claimed, subjects consuming the higher-carbohydrate breakfast experienced an earlier glucose peak/nadir and an earlier return of hunger (higher appetite at 3 and 4 hours postprandial). However, the claim is overstated because the study only measured subjective appetite ratings and circulating metabolites over a 4-hour postprandial window; it did not provide a subsequent ad libitum meal or measure calorie intake at the next meal.

1:22:50overstatedhighDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

Performing 10 to 15 minutes of physical activity immediately following a meal reduces the postprandial glucose excursion by 50% or more.

"where if you just do 10 to 15 minutes of physical activity after your biggest glucose-spiking meal, you will blunt that glucose excursion by half if not even better." (said at 1:22:50)

Engaging in 10 to 15 minutes of light-to-moderate physical activity (such as walking) after a meal significantly attenuates postprandial glucose excursions compared with remaining sedentary. However, the claim that a 10- to 15-minute bout will blunt the glucose excursion by "half if not even better" (50% or more) is overstated. Meta-analyses and randomized crossover trials evaluating 10- to 15-minute bouts of postprandial walking typically show a moderate reduction in glucose incremental area under the curve (iAUC) and peak concentrations, on the order of 12% to 22% (and standardized effect sizes around -0.72), rather than a 50% or greater decrease.

1:28:40overstatedlowDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

A clinical study in women with polycystic ovary syndrome (PCOS) demonstrated that exogenous ketone supplementation improved metabolic markers and clinical outcomes of PCOS as a standalone intervention.

"there was just a study in women with PCOS. The only intervention was to give them exogenous ketones, and every outcome related to metabolic markers and PCOS got better, and the only change was the supplementation with exogenous ketones." (said at 1:28:40)

A 2025 randomized, placebo-controlled crossover trial (PMID: 40393075) evaluated the acute effects of exogenous beta-hydroxybutyrate (BHB) supplementation in 20 women with PCOS over a 10-hour window (two doses). The trial observed acute reductions in fasting plasma glucose (-10%, p < 0.001) and circulating androgens, including 11-ketotestosterone (-21%, p = 0.020) and trend-level reductions in free testosterone (-21%, p = 0.057) and total testosterone (-13%, p = 0.067). Another small trial (PMID: 41494652, n = 10 PCOS) showed acute ketone monoester intake improved flow-mediated dilation and reduced glucose area under the curve during an oral glucose tolerance test. However, claiming that 'every outcome related to metabolic markers and PCOS got better' overstates the evidence: these studies measured acute, short-term surrogate biomarkers over hours, rather than sustained improvements in clinical PCOS outcomes (such as ovulatory frequency, hyperandrogenic symptoms, hirsutism, or long-term metabolic health).

1:44:30overstatedmoderateDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

The primary origin of fat in fatty liver disease is the spillover of free fatty acids from fat cells, particularly visceral fat.

"In fact, the main cause of fatty liver is spillover of fat from fat cells, especially visceral fat. That's the main origin of all that fat." (said at 1:44:30)

The claim is partially supported regarding the overall source of hepatic fat, but overstated regarding the specific contribution of visceral fat. Quantitative metabolic tracer studies show that the largest biological source of hepatic triacylglycerol in nonalcoholic fatty liver disease is circulating nonesterified fatty acids (NEFAs) from adipose tissue lipolysis (~59%), followed by hepatic de novo lipogenesis (~26%) and direct dietary fat (~15%). However, catheterization and isotope dilution studies show that splanchnic (visceral) lipolysis accounts for only ~10% to 50% (and typically under 20–30%) of hepatic fatty acid delivery, with subcutaneous adipose tissue contributing the majority of circulating fatty acids that reach the liver due to its substantially larger overall mass.

2:03:35overstatedhighDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

The delay in gastric emptying caused by GLP-1 receptor agonists can prevent oral medications, such as birth control pills, from being effectively absorbed.

"because of the change in gastric emptying, even some medications like birth control medications don't work anymore, for example, because you've so changed how long it takes that drug to get from the stomach into the the small intestine where it would have been absorbed." (said at 2:03:35)

Pharmacokinetic studies and systematic reviews demonstrate that while GLP-1 receptor agonists (GLP-1 RAs) delay gastric emptying—leading to a delayed time to maximum concentration (tmax) and sometimes modest reductions in peak concentration (Cmax)—they do not meaningfully reduce total systemic exposure (area under the curve, AUC) or bioavailability of oral contraceptive pills. Clinical pharmacology trials of GLP-1 RAs such as liraglutide, dulaglutide, and semaglutide show no clinically significant reduction in oral contraceptive efficacy, and prescribing guidelines do not require dose adjustments or alternative contraception for pure GLP-1 RAs. A temporary reduction in oral contraceptive AUC has been observed with the dual GIP/GLP-1 agonist tirzepatide during dose initiation and escalation, but the assertion that GLP-1 agonists prevent absorption such that birth control pills 'don't work anymore' is contradicted by the pharmacokinetic literature.

2:42:30overstatedvery lowDr. Ben Bikman: How To Reverse Insulin Resistance Through Di

Hypoglycemia disrupts circadian melatonin rhythms.

"Hypoglycemia disrupts melatonin, too. So even back to the glucose mechanism, another reason to not go to bed hypoglycemic is it disrupts the melatonin rhythm at the same time." (said at 2:42:30)

The claim that hypoglycemia disrupts circadian melatonin rhythms (and serves as a reason not to go to bed hypoglycemic) is based on early animal stress models rather than human clinical evidence. In rodents, acute severe insulin-induced hypoglycemia acts as a physiological stressor that triggers catecholamine release and transiently stimulates pineal N-acetyltransferase (NAT) activity and melatonin synthesis via beta-adrenergic receptors. However, evidence demonstrating that bedtime hypoglycemia impairs or disrupts the nocturnal circadian melatonin rhythm in humans is lacking.

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