Why You Are So TIRED (It's This Deficiency)

Berg repeatedly emphasizes walking as a foundational intervention. For insomnia, he states that he personally sleeps better after a long walk. For adrenal fatigue, he recommends avoiding intense evening exercise but encourages long hikes in nature without the digital distraction of a cell phone. This is positioned as a low-cost, side-effect-free method to calm the nervous system, get sunlight exposure (infrared benefit), and promote deeper sleep. The directive to leave the phone behind is novel: it removes both EMF concerns and mental stimulation, letting the mind decompress.

Berg explains that blood sugar fatigue stems from insulin resistance, where glucose is present in blood but unavailable to cells. This metabolic state forces the body to rely on less-efficient fuel pathways, resulting in drowsiness especially after meals. He connects this to the diabetic pattern of high blood glucose but intracellular starvation. His solution is drastic: eliminate all carbohydrates to lower insulin and restore cellular glucose access. He emphasizes not just low-carb but also meal spacing to avoid constant insulin spikes, noting that energy will rise quickly once carbs are removed.

Berg briefly distinguishes between two thyroid fatigue types. He notes that most cases are autoimmune, requiring selenium to modulate the immune attack and aid hormone conversion. Iodine and zinc are more relevant for non-autoimmune hypothyroidism. T3's role in mitochondria is highlighted: T3 increases mitochondrial biogenesis and ATP output, so low levels directly reduce cellular energy. Symptoms like cold feet reflect the body conserving energy by reducing thermogenesis.

Berg details how viruses like herpesviruses remain in the body indefinitely and can reactivate from any significant stressor—psychological, physical, or nutritional. This reactivation causes a chronic low-grade immune drain, mimicking chronic fatigue. He emphasizes the 24-hour delayed onset of exhaustion after exercise as a key diagnostic clue. His protocol layers behavioral (stress reduction) and nutritional (vitamin D, junk food elimination) interventions to suppress viral activity. High-dose vitamin D is a central pillar because it's an immune regulator, and pairing with K2 and magnesium ensures safety.

Berg focuses on the electric nature of fatigue: the body's battery is the sodium-potassium gradient. He explains that most people rarely hit the 4,700 mg potassium RDA, especially if they avoid vegetable-rich meals. Compounding this, a high refined-carb diet amplifies potassium loss because insulin spikes drive potassium into cells, effectively depleting serum levels. He notes the paradox: on standard diets, you're more potassium-deficient; on keto, you flush salt and need extra sodium to avoid 'keto fatigue'. Electrolyte supplementation is presented as a quick energy fix.

Berg presents this as an exception to his main fatigue list, noting that many people with digestive complaints are actually low in acid, contrary to mainstream acid-reflux treatment. He suggests that long-term antacid use worsens fatigue. The high dose of 5-6 capsules is notable, implying a profound deficiency. He claims digestive problems often vanish alongside energy restoration, making this a straightforward test for a subset of patients.

Berg highlights the diagnostic difficulty: serum magnesium tests are unreliable because most magnesium is intracellular. He therefore recommends empirical supplementation. He personally likes taking it before bed for its dual benefit of muscle relaxation and sleep induction.

Berg explains that B1 deficiency manifests as 'nervous energy'—a paradox where the person feels wired yet exhausted. This is due to lactic acid buildup from anaerobic glycolysis, which acidifies blood and affects breathing. He recommends allithiamine because it's lipid-soluble and crosses membranes more efficiently. However, he stresses that the first step is dietary change to reduce carb load and prevent ongoing B1 drain.

Berg makes the case that sunlight is an underappreciated metabolic stimulus. He notes that more than half of sunlight is infrared, which directly enters cells and revs up mitochondria. He ties this to the trend of indoor living and artificial light causing an energy deficit. He also highlights a specific pain pattern—low back radiating to hips and thighs—as a vitamin D deficiency clue. He insists that oral vitamin D must be paired with K2 and magnesium.

Berg explains that red blood cells need the protein hemoglobin to carry oxygen, which requires iron. But copper is essential for mobilizing and utilizing iron. Without enough copper, you can't properly use the iron you have, leading to functional anemia even with normal iron stores. He warns that taking iron when copper is low can cause oxidative damage because excess unbound iron is toxic. He suggests liver pills or organ meats as sources of balanced iron and copper rather than isolated iron supplements. This reframes anemia as a copper-related issue in most non-menstruating individuals, urging a more nuanced diagnostic approach.

Berg explains that when stomach acid is low, you can't properly break down food, extract B12, iron, and amino acids, all critical for energy. This mismatch can make someone both tired and suffer from indigestion. He recommends taking betaine hydrochloride before meals—often five or six capsules—to restore gastric pH. He cites anecdotal reports that not only digestive problems vanish but energy returns rapidly. This challenges conventional acid-suppressing approaches and offers a simple, testable protocol for those with unexplained fatigue accompanying GI complaints.

Berg details the sodium-potassium pump's role: it generates the electrical gradient across cell membranes essential for nerve impulses and muscle contraction. He notes that people rarely eat 4-5 avocados or enormous salads daily, so potassium intake falls far below the 4,700 mg target. When carbohydrates are consumed, insulin surges and potassium is pulled from the blood, leading to intracellular deficiency that saps energy. He advises potassium-rich foods or an electrolyte drink high in potassium to restore the battery charge. He makes an exception for keto dieters who lose salt initially; they need extra salt to avoid keto fatigue.

Berg states that infrared light from the sun penetrates tissue and activates cytochrome c oxidase in mitochondria, enhancing ATP synthesis. He observes that people who stay indoors with artificial light are chronically tired. On top of that, vitamin D deficiency from lack of UVB causes systemic inflammation and musculoskeletal pain (low back radiating to hips and thighs). He recommends direct sun exposure as a dual-action tonic: infrared for mitochondria and UVB for vitamin D, noting that taking vitamin D supplements without K2 and magnesium is insufficient.

Berg explains that viruses like Epstein-Barr can persist in a dormant state and reactivate under stress, psychological or physiological. The reactivation launches an ongoing immune response that siphons energy, causing susceptibility to severe fatigue after exertion—often fine on the day but crashing the next day. He stresses that reducing stress is paramount, along with high-dose vitamin D3 (20,000 IU), combined with K2 and magnesium. He also warns against junk food and low vitamin D as triggers. This insight moves the conversation from generic 'chronic fatigue' to a specific immune-related mechanism that patients can monitor by the 24-hour post-exercise lag.

Berg details that the adrenal glands, sitting atop the kidneys, control stress responses and when overworked produce an inverted energy curve: dragging all day with a severe 3:30–4 PM slump, then waking up at night. Salt cravings are a key sign because aldosterone and sodium balance are disrupted. He recommends sea salt or an electrolyte powder high in potassium to recharge the adrenals, along with ashwagandha as an adaptogen. He cautions against high-intensity evening exercise but advocates long, phoneless walks in nature to reset circadian rhythm. This approach targets the adrenals' electrical and mineral needs directly.