Alergias (respiratorias)

5-HTP is the immediate precursor to serotonin, a key neurotransmitter depleted by chronic stress and burnout. Supplementation raises central serotonin levels, supporting mood, sleep quality, and stress resilience. Clinical trials show benefits for stress-related mood disorders and sleep disturbance, both cardinal features of burnout. It is derived from Griffonia simplicifolia seeds and has been studied for depression and anxiety—conditions on the burnout continuum.

Acetyl-L-Carnitine (ALCAR) facilitates mitochondrial fatty acid transport and acetylcholine synthesis, supporting both energy production and cognitive function. Clinical trials in chronic fatigue syndrome and mental exhaustion populations show significant reductions in fatigue scores. A meta-analysis found ALCAR superior to placebo for reducing mental fatigue, particularly in conditions involving physical or chronic exhaustion resembling burnout.

Burnout is characterized by sustained catecholamine depletion from chronic stress, the very state in which tyrosine supplementation shows strongest benefit. While no dedicated burnout RCTs exist for NALT, mechanistic and stress-trial data directly support its use as a catecholamine precursor in exhaustion states. Evidence is extrapolated from the broader stress and sleep-deprivation literature.

Ashwagandha (Withania somnifera) has the strongest RCT evidence among natural herbs for burnout-related stress recovery. A double-blind, placebo-controlled trial (n=64) showed 27.9% reduction in serum cortisol and significant improvement on validated stress scales after 60 days of 300 mg twice daily. A 2024 systematic review and meta-analysis of multiple RCTs confirmed significant reductions in both perceived stress (PSS) and cortisol at 8 weeks.

CoQ10 is an essential mitochondrial electron transport chain component. A 2022 systematic review and meta-analysis of 13 RCTs (n=1,126) found CoQ10 supplementation produced a statistically significant reduction in fatigue scores vs. placebo (Hedges' g=−0.398, p=0.001). Higher daily doses and longer treatment correlated with greater fatigue reduction. Burnout involves genuine mitochondrial stress, making CoQ10 a mechanistically rationale supplement for recovery.

Cordyceps (Cordyceps sinensis/militaris) is a traditional Chinese medicinal mushroom used for centuries to combat fatigue, weakness, and poor stamina. Modern clinical trials demonstrate improvements in energy, oxygen utilization, and fatigue scores. Its adaptogenic and mitochondria-supporting properties make it relevant to burnout recovery, particularly the physical and energy exhaustion components.

Eleuthero (Eleutherococcus senticosus, Siberian ginseng) is one of the original clinically studied adaptogens, with a substantial body of Soviet-era research and modern trials supporting its role in combating stress-related fatigue and burnout. A review of 35 clinical trials (n>6,000) found improvements in physical stamina, mental performance, and stress resilience. It modulates the HPA axis and cardiovascular stress responses, with eleutherosides as the primary active compounds.

GABA is the primary inhibitory neurotransmitter, and its signaling is consistently dysregulated in burnout, manifesting as anxiety, hypervigilance, and sleep disruption. Supplemental GABA has been studied in RCTs for stress and anxiety reduction. A Japanese RCT found that GABA supplementation significantly reduced psychological stress and fatigue after a stressful task vs. placebo.

Panax ginseng has been studied for anti-fatigue and stress-related exhaustion in multiple RCTs and a systematic review. A 2020 systematic review and meta-analysis (8 RCTs, 30 animal studies) found Panax ginseng compounds superior to placebo on fatigue scales and heart rate recovery. An open-label study with standardized G115 extract in self-reporting fatigue adults found a 41.8% reduction in general fatigue at 90 days. Traditionally used in Chinese medicine for thousands of years to tonify qi and combat exhaustion.

L-theanine, an amino acid from green tea, promotes alert relaxation without sedation and reduces physiological stress responses. At least two RCTs show reduced salivary cortisol after L-theanine vs. placebo during stress challenges. A 2019 RCT in healthy adults found 200 mg/day for 4 weeks improved stress-related symptoms including sleep quality. It is commonly used in burnout recovery protocols for its cortisol-blunting and sleep-improving properties.

While no RCT has used 'burnout' as a primary endpoint, lemon balm's documented effects on stress attenuation, anxiety, mood, and sleep quality are directly relevant to burnout recovery. A 2018 RCT in chronic angina patients found reductions in stress, anxiety, and sleep disorder scores after 8 weeks of supplementation. A 2021 meta-analysis confirmed clinically meaningful anxiolytic effects.

Magnesium is an essential mineral involved in over 300 biochemical reactions including ATP production, cortisol regulation, and nervous system function. Chronic stress increases urinary magnesium excretion and depletes tissue stores, contributing to the fatigue, cognitive fog, and muscle tension hallmarks of burnout. Clinical and mechanistic evidence supports magnesium supplementation for stress resilience and fatigue reduction in depleted individuals.

Omega-3 fatty acids (EPA and DHA) have anti-inflammatory properties and modulate cortisol responses relevant to burnout. An RCT in nurses found reduced burnout scores and lower morning cortisol after 8 weeks of fish oil supplementation (120 mg DHA + 180 mg EPA). EPA and DHA modulate HPA axis reactivity and reduce inflammatory cytokines implicated in burnout-related fatigue and mood disturbance.

Phosphatidylserine (PS) is a phospholipid concentrated in cell membranes that modulates the HPA axis by blunting ACTH secretion and cortisol responses. At 800 mg/day it reduced cortisol response to intense physical stress by 20–30% in clinical studies. A soy-based PS/phosphatidic acid complex (400 mg each) normalized HPA stress reactivity in chronically stressed males in a randomized, placebo-controlled study. It is used clinically for burnout, particularly in overtraining and high-demand occupational contexts.

Burnout is characterized by chronic fatigue, reduced vigor, and elevated stress. Talbott et al. (2013) found that 4 weeks of Relora supplementation significantly reduced fatigue (−31%) and increased vigor (+18%) on the Profile of Mood States (POMS) in moderately stressed subjects versus placebo. Both Magnolia officinalis and Phellodendron amurense have documented traditional use in TCM for states of overwork and exhaustion.

Rhodiola rosea has the most direct clinical evidence among adaptogens for burnout syndrome specifically. A double-blind RCT (n=132) in patients meeting burnout criteria showed significant improvement on the Burnout Measure scale vs. placebo at 576 mg/day over 12 weeks. An open-label multicenter trial in patients with burnout symptoms found clear improvement in most outcome measures within 1 week. Multiple RCTs and a systematic review support its anti-fatigue and stress-reducing properties.

Schizandrol A is the principal bioactive lignan of Schisandra chinensis (five-flavor berry), a classical Chinese adaptogen used for fatigue, stress, and mental performance. It modulates the HPA axis and adrenal cortisol output. Clinical evidence from combination adaptogen trials (ADAPT-232: Rhodiola + Schisandra + Eleuthero) shows significant improvements in attention, speed, and fatigue in stressed adults. Schisandra lignans are documented to inhibit cortisol excess and support anti-fatigue effects via HPA axis signaling.

Tongkat Ali directly addresses the hormonal hallmarks of burnout — elevated cortisol and suppressed testosterone — in human RCTs. The Talbott et al. (2013) trial in moderately stressed adults showed simultaneous cortisol reduction (−16%) and testosterone increase (+37%) after 4 weeks, alongside improved mood parameters. An RCT also found improved stress markers and sleep quality in healthy adults. This hormonal profile aligns with recognized physiological markers of burnout recovery.

Vitamin B12 (cobalamin) is essential for energy production, nervous system integrity, and adrenal function. Deficiency presents with fatigue, cognitive impairment, and mood disturbance—overlapping burnout symptoms. The adrenal glands rely on B12 for hormone production and stress response regulation. Methylcobalamin (the active form) is preferred for bioavailability, especially in those with MTHFR gene variants common in stressed populations.

Vitamin B5 (pantothenic acid) is the direct precursor to Coenzyme A, the essential cofactor for adrenal steroid hormone synthesis including cortisol. Chronic stress depletes B5, impairing the entire cortisol production pathway. Studies in humans confirm pantothenic acid supports steroid hormone production. It is a consistently recommended nutrient in integrative burnout recovery protocols and adrenal support contexts.

Vitamin B6 (pyridoxine) supports adrenal medulla function and the synthesis of key neurotransmitters—serotonin, dopamine, and GABA—that are dysregulated in burnout. It helps restore equilibrium to the nervous system when chronic stress has depleted neurotransmitter production. Chronic stress depletes B6 faster than normal, impairing stress hormone balance and mood regulation.

Vitamin C is a required cofactor for cortisol and adrenaline synthesis in the adrenal glands, which contain 20–150 times more vitamin C than most body tissues. Chronic stress depletes adrenal vitamin C within hours of a stressor. Clinical evidence confirms vitamin C helps moderate cortisol levels in response to stress, and supplementation is used to replenish depleted adrenal reserves during burnout recovery.

Adrenal cortex glandular extracts have been used in traditional naturopathic and glandular therapy since the early 20th century to support adrenal function during burnout and stress-related exhaustion. The premise is organotherapy: supplying raw adrenal tissue components to support depleted glands. Functional medicine clinicians recommend adrenal cortex concentrate for burnout patients with low cortisol output or HPA axis dysregulation.

Ho wood essential oil is widely described in aromatherapy traditions as used specifically for fatigue, exhaustion, and burnout recovery, attributed to its high linalool content and adaptogenic properties. It is applied via diffusion or massage for mental exhaustion and overwork.

Lavender has a long-documented traditional use in European and Persian herbal medicine as a restorative herb for nervous exhaustion, mental fatigue, and debility—conditions overlapping with modern burnout. Lavender's scientifically established anxiolytic, mood-lifting, and sleep-improving properties provide indirect support for its use in burnout recovery, though no clinical trials have tested lavender specifically for burnout.

In TCM and Russian traditional medicine, schisandra is used to restore strength and vitality after periods of overwork and exhaustion. As an adaptogen, it was formally used in Soviet medicine for recovery from physical and mental burnout. Preclinical and small clinical evidence supports HPA axis normalization relevant to burnout physiology.

Black spruce essential oil is a recognized remedy in French aromatherapy practice for burnout and adrenal exhaustion associated with chronic overwork. Its adrenal-supportive properties are attributed to its cortisol-modulating monoterpene chemistry. This is a traditional use within the aromatherapy system, documented by prominent aromatherapy authors.

Whole adrenal glandular is used in naturopathic and integrative medicine traditions for burnout, framed as support for exhausted HPA axis function following prolonged stress. This 'organotherapy' approach—the principle that consuming glandular animal tissue nourishes the corresponding human organ—dates to the late 19th and early 20th centuries. No clinical trials have examined this application, and the underlying construct of 'adrenal exhaustion' is not recognized by mainstream endocrinology.