Sleep Supplements: Enhance Sleep & Recovery with ZMX, Zinc, Magnesium & Vitamin B6

If you’re looking to boost your health and performance, few recommendations rival one that’s absolutely free: Get a good night’s sleep—and with the right sleep supplements, you can further enhance your recovery and sleep quality. This article explores how sleep supplements, especially those containing zinc, magnesium, and vitamin B6, can support your sleep, recovery, and overall performance. Whether you're an athlete, fitness enthusiast, or simply looking to improve your sleep quality, understanding the role of these supplements can help you make informed choices. The scope of this article covers the science behind sleep supplements, their effects on recovery and performance, and practical guidance for anyone seeking better sleep.

Sleep offers a wide range of benefits, including:

• Boosting muscle-protein synthesis and anabolism¹ 

• Making you feel more energetic

• Reducing symptoms of depression and improving memory

• Increasing your athletic performance

• Supporting muscle, joint, and connective tissue recovery

• Elevating your mood

The benefits of quality sleep extend to overall health, immune function, and optimal physical and mental performance. More zzzzz’s gets straight A’s when it comes to creating an optimal environment around which your body recovers from the stressors of life, including your workouts. A comfortable bed and proper sleep setup are also essential parts of sleep hygiene that support restful, restorative sleep.

That apparently is easier said than done. The National Heart, Lung, and Blood Institute reports that 50-70 million Americans have chronic sleep disorders, and a 2024 Gallup Poll indicates only 26 percent of adults get eight hours nightly. ^2,3 A 2022 study by Statistics Canada found poor sleep-facilitating behaviors “prevalent” among the sampled 18-64 age group, with 23 percent not meeting sleep duration recommendations and another 39 percent not meeting sleep quality guidelines.⁴ Lack of sleep can make you feel tired throughout the day, impacting your energy, focus, and motivation.

If our advice consisted of simply recommending you get a better night’s sleep, you’d have done it by now. Let’s take a closer look at what’s going on, and how one studied supplement can help.

Acute and chronic sleep deprivation is a potent catabolic stressor, increasing the risk of metabolic dysfunction and loss of muscle mass and function.⁵ Acute sleep deprivation has been found to decrease muscle-protein synthesis and promote a less anabolic hormonal environment.⁶

Further research has noted a lack of sleep with impaired maximal strength in compound (multi-joint) movements.⁷ And an Australian study determined that “sleep restriction can have detrimental effects on the processes that maintain muscle mass… (which) help to explain previous reports of reduced muscle mass in those experiencing insufficient sleep.”⁸ This makes recovery-focused performance supplements like creatine monohydrate for muscle growth and strength particularly relevant for serious lifters.

Sleep deprivation can also lead to daytime sleepiness, which further impacts performance and recovery.

One of the primary functions of testosterone – among many – is to build muscle. Hormones are chemical messengers that tell your body how to work and what to do. Everyone makes testosterone, but men have levels about 10-20 times higher than women.⁹

What’s more, testosterone levels appear to be declining across the board worldwide, in part because of changes in body weight, physical activity, diet, alcohol consumption, sleep, health conditions, and even environmental toxins (known more nefariously as endocrine-disrupting chemicals).¹⁰

Research suggests insufficient sleep and sleep disorders negatively impact testosterone levels.¹¹ That may well be the mechanism linking sleep issues with suboptimal results in the gym.

One culprit here may be zinc, found in oysters, seafood, chicken, and red meat, an essential trace mineral involved in a range of biochemical processes including testosterone production, immune and metabolic function, and overall immune health. One study found a zinc deficiency can lead to low testosterone.¹² Adequate zinc levels are crucial for maintaining optimal testosterone levels and healthy sperm production, and zinc deficiency can lead to reduced testosterone and impaired fertility in men.¹³

In addition to minerals like zinc, certain amino acid supplements, such as glycine and L-Theanine, are also used to support sleep quality by promoting relaxation and influencing neurotransmitter activity.

In one study, serum zinc was positively correlated with total testosterone, and moderate supplementation played an important role in improving androgen.¹⁴ In another study, researchers noted: “Zinc may play an important role in modulating serum testosterone levels in normal men.”¹⁵

Exercise can deplete zinc, and regular activity can exacerbate the problem.¹⁶ A study by Kilic, et al (2006) examined the effect of intense exercise on professional athletes and its effect on thyroid and testosterone levels. The study determined that intense exercise led to a significant drop in both thyroid and testosterone levels. Further, the researchers found that a four-week course of oral zinc supplementation prevented this drop.¹⁷

For those seeking to improve sleep, many supplements are available, including minerals, herbs, and amino acids. Concerning sleep quantity and quality, supplementation with zinc has shown positive results. A study by Cherasse et al (2017) said: “Recent research has concluded that zinc serum concentration varies with the amount of sleep, while orally administered zinc increases the amount and quality of sleep in mice and humans.”¹⁸ A 2024 systematic review suggests that zinc supplementation may lead to improvements in sleep quality and improve sleep.¹⁹

Zinc is often paired with magnesium in supplemental form because they work synergistically, meaning each mineral helps the body absorb and utilize the other more effectively. Essentially, magnesium can help regulate zinc levels while zinc can enhance the absorption of magnesium.²⁰

Magnesium is a mineral that plays an important role in many of the body's processes and may influence sleep quality.

While magnesium is a ubiquitous element that plays a fundamental role in many cellular reactions, for our purposes here there appears to be an inverse relationship between magnesium and cortisol, a hormone reported to have negative effects on strength gains and muscle mass during training.¹⁶ That is, some research suggests too little magnesium can help spike the steroid hormone cortisol, which is associated with reduced muscle strength and gains.²¹

Unfortunately, there’s a dearth of research specific to zinc and magnesium deficiency and how that affects the production of testosterone and insulin-like growth factor (IGF-1) and their effect on recovery, anabolism, and strength.8 In one study, Brilla and Conte (2000) reported that a zinc-magnesium formulation increased testosterone and IGF-1, leading to greater gains in football players.²²

Athletes have been reported to have lower levels of zinc and magnesium possibly due to increased sweating while training or inadequate intake in their diets. Additionally, zinc and magnesium supplementation has been reported to have positive effects on resistance training athletes.⁸

ALLMAX ZMX is formulated with zinc gluconate and chelated magnesium bisglycinate, and contains vitamin B6 to enhance the bioavailability, or absorption, of each mineral.

When considering zinc and magnesium supplementation, it is important to follow the recommended dosage for safety and effectiveness. Starting with a low dose is often advised to assess individual response, especially since higher amounts may increase the risk of side effects. Individuals taking other medications or who are pregnant or breastfeeding should consult a healthcare provider before starting supplementation, as interactions and contraindications may exist. Zinc and magnesium are also discussed in the broader field of sleep medicine, and may be combined with other natural sleep aids like the valerian plant to support both falling asleep and staying asleep. Zinc and magnesium supplementation appear to be effective, most especially for those who are deficient, as they may well support both sleep and endogenous testosterone production.

Consult with a healthcare professional before starting any sleep supplement. It's important to consult your doctor before starting any new supplement, as natural does not always mean safe for everyone. When choosing a supplement for sleep, you should consider talking with your healthcare provider to review your medical history.

References

1. “Does lack of sleep hinder muscle growth or performance?, Nov. 2019. ISSA, 
2. “What are sleep deprivation and deficiency?” Mar 2022. NHIBI.
3. Fioroni S, Foy, D. “American sleeping less, more stressed. April 2024. Gallup.
4. Wang, C., Colley, R., Roberts, K, Chaput, J.P., Thompson, W. “Sleep behaviors among Canadian adults: Findings from the 2020 Canadian community health survey healthy living rapid response module." Statistics Canada, 2022.
5. Lamon S, Morabito A, Arentson-Lantz E, Knowles O, Vincent GE, Condo D, Alexander SE, Garnham A, Paddon-Jones D, Aisbett B. “The effect of acute sleep deprivation on skeletal muscle protein synthesis and the hormonal environment.” Physiological Reports 2021 Jan;9(1).
6. Dattilo M, Antunes HK, Medeiros A, Mônico Neto M, Souza HS, Tufik S, de Mello MT. “Sleep and muscle recovery: endocrinological and molecular basis for a new and promising hypothesis.” Medical Hypotheses 2011 Aug;77(2):220-2. 
7. Knowles O, Drinkwater E, Urwin C, Laman S, Aisbett B. “Inadequate sleep and muscle strength implications for resistance training.” Journal of Science and Medicine in Sport 2018.
8. Saner, N. et al. “The effect of sleep restriction, with or without high-intensity interval exercise, on myofibrillar protein synthesis in healthy young men." Journal of Physiology 2020. 598.8, 1523-1536.
9. “Testosterone.” Cleveland Clinic.
10. “Why are testosterone levels decreasing?” Sept. 2022. Cleveland Clinic.
11. Leproult R, Van Cauter E. Effect of 1 week of sleep restriction on testosterone levels in young healthy men. Journal of the American Medical Association 2011 Jun 1;305(21):2173-4. 
12. Prasad AS, Mantzoros CS, Beck FW, Hess JW, Brewer GJ. “Zinc status and serum testosterone levels of healthy adults.” Nutrition. 1996 May;12(5):344-8. 
13. Fallah A, Mohammad-Hasani A, Colagar AH. “Zinc is an essential element for male fertility: A review of Zn roles in men’s health, germination, sperm quality, and fertilization.” Journal of Reproduction & Infertility 2018 Apr-Jun;19(2):69-81. 
14. Te L, Liu J, Ma J, Wang S. “Correlation between serum zinc and testosterone: A systematic review.” Journal of Trace Elements in Medicine and Biology 2023 Mar;76:127124. 
15. Prasad AS, Mantzoros CS, Beck FW, Hess JW, Brewer GJ. “Zinc status and serum testosterone levels of healthy adults.” Nutrition 1996 May;12(5):344-8. 
16. Wilborn CD, Kerksick CM, Campbell BI, Taylor LW, Marcello BM, Rasmussen CJ, Greenwood MC, Almada A, Kreider RB. “Effects of zinc magnesium aspartate (ZMA) supplementation on training adaptations and markers of anabolism and catabolism. Journal of the International Society of Sports Nutrition 2004 Dec 31;1(2):12-20. 
17. Kilic M, Baltaci AK, Gunay M, Gökbel H, Okudan N, Cicioglu I. “The effect of exhaustion exercise on thyroid hormones and testosterone levels of elite athletes receiving oral zinc.” Neuro Endocrinol Letters 2006 Feb-Apr;27(1-2):247-52. 
18. Cherasse Y, Urade Y. “Dietary zinc Acts as a sleep modulator.” International Journal of Molecular Sciences 2017 Nov 5;18(11):2334. 
19. Jazinaki MS, Gheflati A, Moghadam MRSF, Hadi S, Razavidarmian M, Nezhad MY, Akhtari H, Nematizadeh M, Safarian M. “Effects of zinc supplementation on sleep quality in humans: A systematic review of randomized controlled trials.” Health Science Reports 2024 Oct 6;7(10):e70019.
20. Hamedifard Z, Farrokhian A, Reiner Ž, Bahmani F, Asemi Z, Ghotbi M, Taghizadeh M. “The effects of combined magnesium and zinc supplementation on metabolic status in patients with type 2 diabetes mellitus and coronary heart disease.” Lipids in Health and Disease 2020 May 28;19(1):112. 
21. Katsuhara S, Yokomoto-Umakoshi M, Umakoshi H, Matsuda Y, Iwahashi N, Kaneko H, Ogata M, Fukumoto T, Terada E, Sakamoto R, Ogawa Y. “Impact of cortisol on reduction in muscle strength and mass: A Mendelian randomization study.” The Journal of Clinical Endocrinology & Metabolism 2022 Mar 24;107(4):e1477-e1487. 
22. Brilla L, Conte V. “Effects of a novel zinc-magnesium formulation on hormones and strength.” Journal of Exercise Physiology 2000 3:26–36.