Metabolic Rebalance®: How 19 Adaptogens Support HPA Axis Recovery
Key Takeaways
Metabolic Rebalance® is FDN's first original supplement, a 19-adaptogen botanical formula developed over more than a year by FDN founder Reed Davis and master herbalist Dan Moriarty.
Adaptogens work bi-directionally. They can support energy when the body is depleted or promote calm when it is overactivated, rather than pushing metabolism in one fixed direction.
The formula targets HPA axis dysregulation, the clinical description of what is often loosely called "adrenal fatigue."
It is built on Sun Horse Energy's Global Resonance Formulation® approach: multiple globally sourced adaptogens working synergistically, rather than one dominant botanical.
Dosing is flexible and titratable. Practitioners are advised to start low and go slow to respect bio-individuality.
More than 300 pages of technical documentation underlie the formulation rationale.
What is Metabolic Rebalance®?
Metabolic Rebalance® is a practitioner-grade adaptogenic tincture and the first original supplement developed by Functional Diagnostic Nutrition®. It combines 19 globally sourced adaptogenic botanicals, led by high-altitude Peruvian black maca, in a sublingual liquid format designed to support the body's stress-response systems.
The name reflects its two-part purpose. Metabolic refers to the processes by which the body converts food, air, and water into usable energy. Rebalance speaks to the goal: supporting equilibrium in systems that chronic stress has pushed out of rhythm.
That philosophy mirrors FDN's own methodology. Identify hidden stressors, then support the body's innate ability to self-correct rather than overriding it.
Why HPA Axis Support Matters More Than "Adrenal Fatigue"
Many clients arrive describing themselves as burned out, exhausted, or "wired but tired." In the lay community, this cluster of symptoms is often labeled adrenal fatigue.
Clinically, the more precise term is HPA axis dysregulation. The hypothalamic-pituitary-adrenal axis is the body's central command for stress and recovery, coordinating neuroendocrine, immune, metabolic, and behavioral responses to stressors. When chronic stress disrupts it, the result can show up as altered cortisol rhythms, impaired stress resilience, mood disturbance, and persistent fatigue.
The distinction matters for practitioners. Framing the problem as HPA axis dysregulation points toward supporting a communication system, not toward stimulating a single tired gland. That reframe is exactly what an adaptogenic approach is built for.
How Adaptogens Work: The Bi-Directional Difference
Adaptogens are botanicals recognized for helping the body adapt to stress and maintain homeostasis across multiple biological pathways. What separates them from stimulants is direction.
A stimulant pushes one way: up. An adaptogen responds to what the body needs.
This bi-directional action is the formula's central mechanism. The same blend may help lift energy in someone depleted, or help settle an overactivated nervous system, sometimes in the same person on the same day, depending on physiological state.
Key adaptogenic actions relevant to Metabolic Rebalance® include:
Supporting healthy cortisol rhythms and a balanced stress response
Supporting mitochondrial energy production, helping counter the fatigue that follows sustained stress
Supporting neurotransmitter balance, which relates to mood, focus, and emotional regulation
Supporting HPA axis function, the body's central stress-and-recovery command
These effects are cumulative rather than immediate. Clients typically describe a steady restoration over weeks, not a surge.
Inside Sun Horse Energy's Global Resonance Formulation®
Most adaptogen products isolate a single hero botanical: ashwagandha, or rhodiola, or reishi. Metabolic Rebalance® takes the opposite approach.
Master herbalist Dan Moriarty of Sun Horse Energy uses the term Global Resonance Formulation® to describe the synergy in the blend. Rather than emphasizing one dominant herb, the formula harmonizes multiple globally sourced adaptogens, each contributing a different energetic profile and stress-adaptation pathway.
Some botanicals in the blend support adrenal recovery. Others influence inflammatory signaling or nervous-system tone. Together, they address metabolic balance from a systems-based perspective rather than a single-target one.
The development process ran through dozens of iterations, optimizing not only for potency but for tolerability. Dan Moriarty's clinical experience showed that even high-quality herbs can overstimulate sensitive individuals if the blend is not carefully balanced. That attention to energetic compatibility is what makes the final formula both gentle and effective.
The Story: A Year of Formulation
The formula began with Dan Moriarty's lifelong work in herbalism, shaped by his Hungarian heritage and refined across decades of professional practice. His approach blends traditional herbal wisdom with modern research validation.
When Reed Davis approached him about creating a supplement to help clients regain energy, improve sleep, and adapt to stress more effectively, the collaboration was a natural fit.
They spent more than a year refining it: testing combinations, reviewing clinical literature, and ultimately producing a 300-page technical document setting out the biochemical rationale for every ingredient. That depth of grounding set Metabolic Rebalance® apart before it ever reached the market.
Early formulations were tested across diverse populations, from highly stressed executives to clients working through functional protocols for adrenal recovery, with consistent patterns of improvement reported in energy, mood, sleep, and general well-being. Practitioners also noted that clients who had relied on caffeine or stimulants described smoother, more sustainable energy after integrating the formula.
How to Dose Metabolic Rebalance®
The guiding principle is start low and go slow.
Because every client's stress-response pattern differs, the tincture is designed for individualized titration. Practitioners typically begin clients on a smaller amount and increase incrementally until they find the level that suits them.
Basic protocol:
Shake the bottle. It is a whole-plant tincture, so shake to distribute the botanicals.
Dispense sublingually. Six to twelve pumps (1 to 2 mL) daily, titrated to tolerance.
Hold under the tongue. Sublingual delivery bypasses digestion for efficient uptake.
Stay consistent. Adaptogenic effects accumulate, so sustained use matters more than any single dose.
Some clients notice deeper sleep, improved stress tolerance, and clearer thinking within days or weeks. For others the change is subtler and shows up as a longer-term lift in vitality and focus.
This titration approach aligns with FDN's broader principle of bio-individuality, a personalized, client-centered method rather than a fixed prescription.
Where It Fits in a Functional Protocol
Because it is balancing rather than forcing, Metabolic Rebalance® integrates into most functional medicine frameworks without contraindicating common therapeutic regimens. It pairs particularly well with:
Functional lab work addressing HPA-axis dysfunction or thyroid dysregulation
Gut healing and detoxification protocols
Programs targeting fatigue, stress load, or metabolic resistance
Sleep and recovery interventions
The D.R.E.S.S. for Health Success® framework
For clients, the appeal is simplicity. Instead of managing several separate adaptogenic supplements, the blend consolidates what many try to achieve with multiple products — stress balance, energy support, and mental clarity — into one formula.
It is also versatile in timing. It can be used consistently for ongoing stress management, or during periods of heightened demand such as travel, emotional strain, illness recovery, or major life transitions. Because adaptogens modulate rather than suppress, they are suitable for extended daily use.
Getting the Most From It
Supplements work best inside a broader framework. FDN practitioners recommend pairing Metabolic Rebalance® with:
Circadian-friendly sleep rhythms
Balanced macronutrient intake, with adequate protein and healthy fats
Daily movement and breath practice
Digital and emotional decompression strategies
Consistency is the variable that matters most. The most meaningful results come from sustained use over several weeks as the adaptogenic compounds accumulate.
The Bigger Picture
Reed Davis describes Metabolic Rebalance® as more than a supplement. It is a toolkit for better living, and an expression of FDN's mission to make functional health accessible, actionable, and results-driven.
Health does not come from force. It comes from adaptation. This formula gives practitioners and clients a way to support that adaptive rhythm, bridging traditional herbal mastery and modern metabolic science.
Explore Metabolic Rebalance® →
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use, and do not use if pregnant or lactating.
FAQ
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It's a practitioner-grade adaptogenic tincture from Functional Diagnostic Nutrition — a 19-botanical blend led by high-altitude black maca, formulated by Reed Davis and master herbalist Dan Moriarty to support the body's stress-response systems.
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Rather than isolating one botanical, it uses a Global Resonance Formulation® — 19 adaptogens chosen to work synergistically, each contributing a different stress-adaptation pathway. The blend is also balanced specifically for tolerability in sensitive individuals.
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Sublingually. Shake the bottle, dispense 6–12 pumps (about 1–2 mL) under the tongue daily, and hold briefly before swallowing. Start at the lower end and titrate up.
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Some report deeper sleep and better stress tolerance within days to weeks. Others experience a more gradual improvement in energy and focus. Adaptogenic effects are cumulative, so consistency over several weeks matters.
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Adaptogens modulate rather than suppress the stress response, so the formula is designed for sustained daily use without dependence.
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The formula was specifically balanced for tolerability — a core focus of the development process — and contains no added stimulants. As with any new supplement, sensitive individuals should start at the lowest amount and increase gradually.
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Metabolic Rebalance® is available through the GetHealthy Supplement Store for professional distribution and client implementation.
