Boost cellular energy and slow the aging process from within.
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Trusted by 50,000+ lifelong health enthusiasts
Magnesium Glycinate — for Deep Sleep, Calm & Whole-Body Health
$47.87
$35.88
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Up to 70% of people are magnesium deficient — and it shows up as poor sleep, stress, tension, and low energy. Magnesium powers over 300 processes in your body, yet most forms are poorly absorbed or upset your stomach. Our chelated magnesium glycinate is the gentle, highly-absorbable form that helps you relax, sleep deeply, and feel calm — without the laxative effect. Made in the USA.
Promotes deep, restful sleep and a calm, relaxed mind
Highly absorbable and gentle on the stomach — no laxative effect
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60-day money-back guarantee
Formulated by Nathaly Marcus
📋 Benefits
Deep, restful sleep
Calm and stress relief
Muscle relaxation
Healthy blood pressure and heart
Sustained energy
Strong bone health
Highly absorbable, gentle form correcting a widespread deficiency
🧪 Supplement Facts
💊 How to Take
⏱️ What to Expect
Official Nathaly Marcus Formula. Authenticity only guaranteed here. Protect your health by avoiding unauthorized third-party retailers or marketplaces.
The Science Behind Magnesium
Magnesium powers over 300 processes, yet up to 70% are deficient. Glycinate is the gentle, highly-absorbable form for sleep, calm, and whole-body health.
Magnesium is a master mineral involved in over 300 enzymatic reactions, crucial for sleep, nerve function, muscle relaxation, stress response, and energy production. Despite its importance, modern diets and soil depletion mean up to 70% of people are deficient.
Many magnesium supplements are poorly absorbed or cause digestive upset due to their form. Magnesium Glycinate binds magnesium to the amino acid glycine, creating a chelated form that is highly absorbable and gentle on the stomach, maximizing benefits for sleep and calm.
The Problem
What You Feel
What's Happening Inside Your Body
Trouble falling or staying asleep
Low magnesium disrupts sleep cycles
Stress, tension, restlessness
Overactive nervous system without enough magnesium
Muscle cramps or twitches
Magnesium deficiency for muscle relaxation
Low energy and fatigue
Magnesium needed to fuel cellular energy
The Fort-Core Magnesium System
Three pathways. Total wellness.
Relax & Sleep
Calms the nervous system, promotes GABA activity, and supports natural melatonin production for deeper, more restorative sleep.
Calm & De-Stress
Glycine, the amino acid bound to magnesium, provides a gentle calming effect, easing tension and supporting a balanced stress response.
Support Whole-Body Health
Powers over 300 biochemical reactions crucial for muscle relaxation, healthy nerve function, strong bones, cardiovascular health, and sustained cellular energy.
Amplify
Resveratrol activates sirtuin enzymes, the same longevity pathways triggered by caloric restriction — without the hunger.
What Makes Fort-Core Magnesium Glycinate Different
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Formulated by Nathaly Marcus — Trusted by Millions
Nathaly Marcus is a functional medicine practitioner and supplement formulator trusted by millions for her evidence-based, no-BS approach to health. She created Fortcore to provide high-performance, science-backed supplements after seeing countless people struggle with fundamental health issues. Every FortCore formula is built to her exact standards: clinical doses, third-party testing, and ingredients she uses herself. When you choose Fortcore, you're getting a system designed by someone who refuses to compromise on quality or results.
Frequently Asked Questions
Who is Nathaly Marcus and why did she create Fortcore?
Nathaly Marcus is a clinical nutritionist and a pioneer in functional medicine with over 30 years of experience. As the founder of the Functional Health Mind-Body Institute, she has dedicated her career to finding the root causes of health issues rather than just treating symptoms. She created Fortcore to provide high-performance, science-backed supplements that meet the rigorous clinical standards she requires for her own patients.
What is the "3R Method" mentioned in the formulas?
The 3R Method is Nathaly Marcus’s signature framework for achieving total wellness:
Repair: Healing the gut and reducing systemic inflammation.
Regenerate: Revitalizing cellular energy and slowing the aging process.
Reset: Balancing metabolism and hormones to restore the body’s natural rhythm. Every Fortcore product is designed to support one or more of these pillars to help you move from simply "surviving" to thriving.
Why should I choose Fortcore over other supplement brands?
Fortcore isn't just another supplement line; it is a clinical-grade system. We prioritize high bioavailability, clinically backed dosages, and zero-sugar formulations. Our products are the exact tools Nathaly uses in her practice—clinically dosed and backed by peer-reviewed research.
Are Fortcore supplements safe to take together?
Yes. Our product ecosystem is designed to be synergistic. Many of our customers combine formulas (such as our Sugar Reset with NAD+) to address multiple pillars of health simultaneously. However, if you are pregnant, nursing, or taking prescription medication, we always recommend consulting with your healthcare provider first.
How soon can I expect to see results?
While many users feel a difference in energy and mental clarity within the first few days, cellular health is a marathon. For metabolic and hormonal support, we typically recommend consistent use for 30 to 90 days to allow your body to fully repair and regenerate.
What is your quality standard?
Quality is our obsession. All Fortcore products are manufactured in facilities following strict GMP (Good Manufacturing Practice) standards. Our ingredients are peer-reviewed for efficacy, sugar-free, and tested for purity to ensure you are getting exactly what is on the label.
Do you offer international shipping?
Yes! We ship to a wide range of countries, including Canada, Mexico, the UK, the European Union, Australia, and more. Shipping rates and delivery times are calculated at checkout based on your location.
What is your return policy?
We stand behind our formulas. If a product isn’t the right fit for you, we offer a "Satisfied or Refunded" guarantee. Please contact our support team within 30 days of your purchase, and we will guide you through the return process.