Why Your Blood Sugar Won't Drop (The Secret Cause)

Berg stresses that many people mistakenly think cutting ‘sugar’ — meaning sweet items — is enough. But starch‑laden foods like bread, pasta, and potatoes break down into glucose just as surely. Moreover, processed foods contain maltodextrin (a starch‑derived carbohydrate with a high glycemic impact) and modified food starch that can slip under the radar. He points to the modern grocery store landscape, where entire aisles are dedicated to chips, crackers, cookies, and snack bars, and contrasts it with pre‑1970s eating habits, when snacking was discouraged. The diet must be accompanied by a shopping list that excludes all junk and snack foods. He uses his own reaction to a Chinese‑restaurant meal — likely high in MSG and rice — as an example of how certain foods trigger false hunger an hour later, a dopamine‑driven craving rather than true need, which can derail the protocol. By eliminating these cues, the regimen creates a biochemical environment where insulin can stay low long enough for healing.

Berg frames snacking as a modern addiction, not a physiological necessity. He argues that genuine hunger should not return an hour after a meal; if it does, it’s likely a dopamine loop triggered by highly processed, high‑glycemic foods. He recommends skipping breakfast and limiting intake to two meals to minimize daily insulin excursions. The ‘kitchen closed’ rule prevents mindless evening eating that sabotages the overnight fast. He ties this advice to the broader cultural shift from three meals with no snacks (common before the 1970s) to the current grazing pattern that keeps insulin chronically high. Alongside diet, he emphasizes bringing a list free of junk foods to the grocery store to avoid temptation, reinforcing the behavioral side of the protocol.

Berg identifies stress as the second major cause of high blood sugar when diet is already clean. He references the cortisol awakening response, which spikes at around 8 a.m., making morning glucose higher even without food. He notes that corticosteroid medications like prednisone can amplify this effect so dramatically that they can induce diabetes. Therefore, he elevates stress reduction to an essential piece of the protocol. He specifically recommends walking, which can burn off the excess sugar quickly, and getting outside in sunlight rather than staying under fluorescent office lights. Good sleep is listed as essential, though he does not elaborate on sleep hygiene in this episode. The combination of low‑carb eating, no snacking, and stress reduction forms a triad aimed at simultaneously reducing insulin demand and glucose supply.

Berg contrasts the A1C (a three‑month average of blood sugar) with fasting insulin, noting that A1C can be only mildly affected by the liver’s overnight glucose production and therefore may not ring alarm bells. He explains that a person could have significant insulin resistance yet still see a normal A1C. To catch the problem early and monitor healing, he recommends fasting insulin. The target range of 2–6 is tight; even a value of 7 or 8 places someone in a risk category that justifies the full dietary and lifestyle protocol. If fasting insulin is 12 or greater, he indicates that reversal may take many months, but emphasizes it will happen if insulin triggers are consistently removed. This testing strategy turns the problem from a vague glucose number into a measurable insulin‑resistance metric.

Berg wraps up the protocol by explicitly stating that the steps — low‑carb diet, no snacking, stress reduction — must be maintained for a longer period of time, not just until symptoms improve. He repeats that insulin resistance took years to develop and will not vanish overnight. He gives a realistic range: some people correct in weeks, some in months, and some over a year, but he emphasizes that healing will happen. This message is designed to prevent discouragement when the morning glucose reading remains stubborn, reinforcing that the biological remodeling of insulin receptors is slow but inevitable if insulin triggers are eliminated.

Berg explains that a small percentage of the body — parts of the brain, the kidney — obligatorily runs on glucose. If dietary sugar isn’t available, the liver must manufacture it via gluconeogenesis from fat and protein. The liver’s sugar production normally has an ‘off‑switch’: insulin. When insulin is present and cells are sensitive, the liver stops pumping out extra glucose. However, after 10–20 years of high‑carbohydrate eating, cells become insulin‑resistant, so the liver interprets the lack of effective insulin as a signal to keep making sugar. This explains why a person on a low‑carb diet can still have high blood sugar — it’s not what they ate, but what their liver is churning out. He notes that 80% of a diabetic’s blood sugar comes from hepatic production, underscoring the liver’s dominant role. The dawn phenomenon — high glucose in the morning after fasting — is a practical manifestation: the 8 a.m. cortisol spike combines with pre‑existing insulin resistance to drive liver sugar production. Metformin, he adds, targets the liver’s insulin resistance but only manages the symptom without correcting the root cause. The fix is to stop triggering insulin long enough for receptors to heal.

Berg walks through the timeline: someone eats large amounts of carbohydrates for 10–20 years, constantly spiking insulin. The body’s cells, bombarded by insulin, gradually down‑regulate their response. At this stage, fasting glucose may still be normal because high insulin is ‘cleaning up’ the sugar, masking the problem. Doctors rarely test fasting insulin, so the resistance goes undetected. Eventually, the pancreas can no longer compensate, and insulin becomes relatively deficient — then glucose climbs. The liver, lacking an effective insulin off‑switch, hyper‑produces sugar. Berg highlights that even after a person stops eating carbs, the same insulin‑resistant liver keeps cranking out glucose. He advises checking fasting insulin rather than just glucose or A1C; a value of 2–6 is optimal, 7–8 signals risk, and 12+ indicates strong insulin resistance that will take months to reverse. The central action is to stop stimulating insulin so that the receptors can resensitize.

Berg describes the scenario: someone eats lots of sugar for years; their blood sugar tests normal because insulin is doing its job and removing glucose from the blood. Over time, however, the constant high insulin drives resistance, until the pancreas cannot keep up and glucose finally rises. By then the condition is more advanced. The A1C, an average of three months of blood sugar, can also stay relatively normal even when the liver is overproducing sugar, because the problem may only manifest in the morning and can be burned off with a walk. Berg states that a much better test is fasting insulin, with optimal values between two and six. He warns that seven or eight is the risk zone, and twelve or more indicates strong insulin resistance. The emphasis shifts from tracking glucose to tracking insulin, as lowering insulin is the key to healing.

Berg acknowledges that metformin targets the same liver‑insulin‑resistance mechanism he has been describing, which is why it helps blood sugar. However, he emphasizes that the medication does not ‘fix the cause’ — it simply suppresses the symptom while the underlying dietary and lifestyle drivers remain. He also flags a major side effect profile, implying that the drug’s benefit comes with a cost that lifestyle changes can avoid. The statement serves to distinguish between symptom management and correction of insulin resistance through prolonged insulin‑lowering strategies.