Studies are still focused on muscle and oxidative stress remediation needed for resilience and recovery but are expanding scope to consider the myriad factors that contribute to both execution and the rebound.
Here workout staples like creatine now sit alongside botanicals, targeted micronutrients and a fast-evolving mix of pro-, pre- and postbiotics pitched for end points that span cognition, physical output, stress and mood, testosterone support and sexual vitality.
While calls for further research prevail, below is a round-up of the latest science—much of it industry sponsored—that offers a snapshot of where R&D is investing its energy to boost the components of holistic male optimization.
Nestlé explores vitamins B3 plus B6 for muscle repair after high intensity exercise
Researchers from the Institute of Sports Medicine Copenhagen and Nestlé Institute of Health Sciences investigated whether a short course of two B vitamins—nicotinamide (vitamin B3) and pyridoxine (vitamin B6)—could enhance muscle repair after a bout of high-force eccentric contractions designed to induce muscle damage.
The study evaluated the effects in 39 healthy men between the ages of 18 and 49 who receive either 714 mg/day nicotinamide plus 19 mg/day pyridoxine (DSM Nutritional Products) or placebo for nine days, starting on the day of the injury protocol. Outcomes included blood levels of the vitamin compounds (to confirm absorption) and muscle biopsy–based measures of muscle stem cell activity and regeneration collected eight days after the damaging contractions.
“Daily oral NAM/PN supplementation after high intensity muscle contractions enhances MuSC activity and accelerates muscle regeneration and repair, providing new opportunities for therapeutic applications in muscle recovery and muscle wasting disorders,” the researchers reported in Advanced Science.
They also noted that the intervention was well tolerated but called for larger, more diverse studies (including women) and follow-up work to link cellular changes to functional measures (strength, soreness, return to activity) and to clarify underlying mechanisms.
Short-term creatine loading provides dual recovery and performance benefits
A small trial examined whether a short “loading” phase of creatine monohydrate—best known for its performance benefits—might also influence sleep quality, cognitive performance and recovery in physically active men.
The study involved 14 participants who completed two 7-day supplementation periods—20 g/day of creatine monohydrate (split into four 5-gram servings) and a placebo—separated by a 14-day washout, while keeping habitual training routines consistent.
Sleep was tracked with wrist-worn actigraphy and a subjective sleep quality scale. The day after each supplementation phase, participants completed a 5 -minute shuttle run test, a digit cancellation test of attention and questionnaires assessing well-being, perceived recovery and delayed-onset muscle soreness out to 72 hours.
The authors cautioned that the findings may not generalize to other populations or to people with sleep disruption. And suggested that future work should use larger samples, include women and different training/sleep contexts, and add mechanistic assessments (e.g., tissue creatine measures and more detailed sleep physiology) to clarify how creatine might influence sleep perception and cognitive performance.
Probiotic shows promise for stress management in Saudi men, but not women
Probiotics may serve as a potential adjunct strategy for stress management in males, pending confirmation in larger and longer placebo-controlled trials, according to researchers in Saudi Arabia.
Noting that young adults in the country experience high, persistent stress due to academic, social and financial pressures but that and that evidence from Middle Eastern populations is limited, they evaluated whether the Lactobacillus rhamnosus GG (6 × 109 CFU/day, LGG capsule) probiotic could help reduce this stress via the gut–brain axis in a cohort of 66 adults using an Arabic-validated stress questionnaire.
Participants, largely recruited from Umm Al-Qura University were assigned to either to the control group (not receiving anything) or to the probiotics group and visited the center in Makkah for baseline data collection and 30 days later post-intervention for stress level and bowel function reassessment.
“In sex-stratified analyses, males receiving probiotics showed larger reductions than male controls, while no significant difference was observed among females,” the study, published in Frontiers in Nutrition, reported. “Probiotic participants also reported lower post-intervention stress scores and a higher proportion classified as low stress.”
Bowel habits remained unchanged.
Konjac glucomannan may ease constipation in elite Taekwondo athletes
Supplementation with glucomannans from konjac, a soluble fiber, may ease gastrointestinal symptoms in elite male Taekwondo athletes with functional constipation.
Researchers from the Southwest University in China assigned 48 elite male Taekwondo athletes with functional constipation to consume either 3 grams/day of a maltodextrin placebo or 3 g/day of konjac glucomannan group for eight weeks— proposing that the intervention may improve hydration of stool, modulate the composition of the gut microbiota and stimulate peristalsis.
“KGM [konjac glucomannan] supplementation appears to offer a clinically meaningful approach to alleviating functional constipation, potentially through the enhancement of gut microbial diversity and function,” they reported in the European Journal of Nutrition. “These findings reinforce the therapeutic potential of dietary fiber in modulating the gut ecosystem and improving bowel health, particularly in athletic populations.”
According to the findings, the microbial changes were strongly correlated with the improvements in constipation symptoms. Additional analysis revealed changes to select metabolic pathways, notably those involved in the biosynthesis of biotin and nitrate reduction.
Could coffeeberry extract improve skills in young male soccer players?
A single dose of coffeeberry extract may enhance soccer skill performance in young male academy players, particularly passing speed and accuracy.
Data published in the Journal of Science and Medicine in Sport indicated that a 300 mg dose of the coffeeberry extract led to better short and long passing speed and retention of short pass accuracy, compared to placebo in 20 male players. No improvements in sprinting or running endurance were recorded.
“The differences between trials in passing speed (4.7 %) were above the previously reported test–retest variation of 3.4 % for short pass and 4.3 % for long pass, meaning that our findings demonstrate a small but positive effect,” wrote scientists from Brighton and Hove Albion Football Club (UK), the Gatorade Sports Science Institute (PepsiCo Life Sciences, U.K. and U.S.), Atlantic Technological University (Ireland), Griffith University (Australia) and the University of Stirling (U.K.).
They suggested that the small positive effect of coffeeberry may be driven by a cognitive and/or neuromuscular action to enable retention of passing speed alongside passing accuracy but noted that results cannot be generalized beyond this player group.
PepsiCo has been studying the extracts for several years, with a 2021 paper in Nutritional Neuroscience reporting that a single dose (1,100 mg) of a coffeeberry extract may boost alertness in healthy men and women, with effects still observable six hours after consumption
Sorghum extract may accelerate post-exercise strength recovery
Daily supplementation with RedLeaf Biologics’ polyphenol-rich sorghum extract enhances strength recovery after bout of intense eccentric exercise, according to research out of the University of Kentucky.
Data published in Journal of Strength and Conditioning Research indicated that supplementation with 250 mg to 500 mg of the company’s ReDaxin-branded sorghum bicolor extract for 17 to 18 days in 29 college-aged men led to a five-fold improvement in strength recovery and up to 27% reduction in muscle soreness during recovery, compared to placebo. The men underwent the eccentric exercise tests (an exercise-induced muscle damage protocol) on day 14 or 15 and followed for monitored closely for the remaining three days. No differences between the sorghum groups and placebo were observed for muscle swelling, perceived pain or recovery.
“The new clinical study is a major milestone for the sports nutrition industry,” Jordan Wood, co-founder and CEO of RedLeaf Biologics, said of the findings. “We have peer-reviewed clinical data confirming that a U.S.-grown botanical can accelerate strength recovery and reduce soreness after exercise. ReDaxin represents the perfect marriage of gold standard science and American agriculture.”
Probiotics plus omega-3s may boost muscle strength for swimmers
Combining probiotics, omega-3 fatty acids and ultra-short race-pace training may enhance explosive upper-body strength for elite sprint swimmers, compared to training alone.
The benefits are likely linked to complimentary mechanisms of action, including an impact of the probiotics on the integrity of the gut barrier and immune function, and the anti-inflammatory and anabolic effects of omega-3s, according to a study published by researchers from Shiraz University (Iran), Increnovo LLC (USA) and Waseda University (Japan).
“These findings highlight the potential of targeting the gut–muscle axis as part of a comprehensive strategy to optimize responses to high-intensity training,” they wrote in the journal Nutrients. “Incorporating synbiotic supplementation into personalized training programs may provide athletes with a practical means of enhancing explosive performance and muscular endurance while supporting recovery and overall physiological resilience.”
The Comflor PRO probiotic product used in the study ismanufactured by the Farabiotic Company in Tehran and contains Lactiplantibacillus plantarum BP06, Lacticaseibacillus casei BP07, Lactobacillus acidophilus BA05, Lactobacillus bulgaricus BD08, Bifidobacterium infantis BI04, B. longum BL03, B. breve BB02 and Streptococcus thermophilus BT01. The omega-3 product was produced by Germany-based EuRho Vital.
Astaxanthin may boost cycling endurance and performance
Short-term supplementation with AstaReal’s astaxanthin may improve cycling performance in young men.
According to a study published in BMC Sports Science, Medicine and Rehabilitation, four days of supplementation with AstaReal’s astaxanthin at a high dose of 28 mg per day was also associated with decreases in markers of muscle damage and oxidative stress.
The research, supported by grants from the National Science and Technology Council of Taiwan, was conducted in 10 healthy young men who were randomly assigned to receive either the astaxanthin supplements or a placebo for four days. On the last day, participants performed an exhaustive cycling exercise before crossing over to the other group after a seven-day washout period.
“Our findings demonstrated that short-term [astaxanthin] supplementation enhanced endurance performance among young college adults,” wrote scientists from China Medical University and National Taichung University of Education. “Pre-supplementation of [astaxanthin] effectively decreased exhaustive cycling challenge-induced muscle damage and lipid peroxidation.”
Karen Hecht, vice president of science at AstaReal, Inc. noted that while the dosage used in the study exceeds current FDA’s new dietary ingredient notification (NDIN) limits, it provides valuable evidence supporting the rationale for a temporary “ramp-up” protocol—“offering a novel application for astaxanthin as an acute intervention, distinct from the more established maintenance doses designed for long-term supplementation and preventative health strategies.”
Postbiotics may boost amino acid absorption from plant-based meal
Postbiotics may outperform their probiotic versions for boosting amino acid absorption following ingestion of a plant-based burger, according to a first-of-its-kind study.
Conducted by researchers from Texas Tech University, Concordia University Chicago, University of Mary Hardin-Baylor, Increnovo and the Università Degli Studi Di Milano-Bicocca, the study included 16 normal-weight recreationally active men with an average age of 23.
Participants were randomly assigned to one of three groups: placebo, probiotics (10 billion CFU of L. paracasei LP-DG + L. paracasei LPC-S01) or postbiotics (10 billion AFU of LP-DG + LPC-S01 inactivated using gamma-irradiation). Each intervention lasted two weeks and was separated by four-week washout periods. On the last day of each intervention the participants were given a Beyond Burger and their responses recorded.
“Two weeks of supplementation of postbiotic supplementation containing 5 billion AFU L. paracasei DG plus 5 billion AFU L. paracasei LPC-S01 resulted in significant improvements in amino acid absorption profiles for various amino acids and total amino acids compared to placebo and probiotic supplementation,” the researchers wrote in Probiotics & Antimicrobial Proteins. “This is the first data to report an improved absorption of amino acids in a mixed macronutrient meal and provides a rationale for probiotic and/or postbiotic supplementation as a support strategy to improve the amino acid response in the post-prandial state.”
The probiotics and postbiotics were provided by Italian supplier Sofar S.p.A., which funded the study.
Creatine and GAA show promise for esports performance
Creatine and guanidinoacetic acid (GAA) supplementation may improve esports performance in experienced male gamers.
A pilot study in 10 young male esports athletes adds to a growing number of studies evaluating creatine’s impact on cognitive performance, specifically using guanidinoacetic acid (GAA) to aid creatine transportation to the brain. Participants consumed a GAA-creatine mixture (2 g of creatine and 2 g of GAA) twice daily and were assessed at baseline and at after four weeks for any changes to esports performance and cognition.
The combination appeared to not only improve in-game performance but also several standardized cognitive tests assessing reaction time, accuracy and executive control, according to Sergej Ostojic, PhD, head of the Applied Bioenergetics Lab at the University of Novi Sad, Serbia and an author on the study.
“It is therefore plausible that this combination of supplements could be similarly effective in other games that heavily depend on these cognitive functions, although further research is needed to confirm this,” he said, noting that the “highly promising” results should be interpreted with caution and that future research will focus on changes in cerebral creatine levels.
Enoki mushroom intake could counter male menopause, testosterone decline
Researchers in Japan investigated the efficacy and safety of powdered enoki mushroom extract containing adenosine for menopausal symptoms in middle-aged and elderly men.
A total of 56 men over the age of 40 consumed either 10 capsules of enoki mushroom extract a day (125 mg per capsule) or a placebo for 12 weeks, with evaluations performed at baseline and at the end of the study period. Test products were provided by TechnoSuruga Laboratory, Co., Ltd. in Shizuoka, Japan.
“The main result of the present study was that the intake of enoki mushroom extract for 12 weeks by healthy male subjects with AMS scores of 27–49 attenuated male menopausal symptoms, such as declines in sexual function and testosterone levels with aging,” the researchers reported.
They noted that with increase in average life expectancy, age-related male menopause (also known as andropause) and the related decline in male hormones has become a cause of decreased quality of life in men—characterized by depression, psychological symptoms, muscle weakness, sleep disorders, erectile dysfunction, among other symptoms, not to mention late-onset hypogonadism syndrome.
Gencor’s botanical blend may improve quality of life, enhanced sexual function in older men
A blend of extracts from pomegranate fruit rind and cocoa seeds, marketed as TesNor, could enhance sexual function, libido and improve psychological well-being among older men.
Published in the International Journal of Medical Sciences, the study assessed the efficacy of the combination supplement (LN18178) on the sexual function of 120 men between the ages of 40 and 70 years with mild to moderate erectile dysfunction and low sexual desire Participants consumed either 400 mg of LN18178 or a matched placebo capsule daily with breakfast.
The researchers in India noted that pomegranates (Punica granatum L.), rich in active antioxidant phytochemical compounds, have been associated with fertility, regeneration and endurance, with the body of research demonstrating benefits for sperm count, motility and viability, as well as intra-cavernosal blood flow, smooth muscle relaxation, and erectile activity against oxidative stress. Meanwhile, a previous indicated that a diet containing T. cacao seeds significantly improved the semen quality in rabbit bucks.
“LN18178 enhances sexual function, libido and improves psychological well-being, as well as neuromotor function and general well-being in aging males,” they reported. “LN18178 supplementation is safe and well tolerated by the participants.”
Tesnor is a trademark of Gencor and Laila Nutra, which funded the study.
Probiotic-fortified kefir reduces depression in overweight older men
Researchers in Iran investigated the effect of kefir fortified with two strains, Lactobacillus helveticus and Bifidobacterium longum, on depression, appetite, oxidative stress, and inflammatory parameters in 67 overweight and obese men over the age of 65.
One group received one bottle (240 cc) of regular kefir as placebo, while the intervention group received one bottle of probiotic-fortified kefir for eight weeks. Depression and appetite were evaluated using the Geriatric Depression Scale-15 (GDS-15) and a validated Visual Analogue Scale (VAS).
“The findings suggest a positive effect of two specific strains of Bifidobacterium and Lactobacillus on improving depression in this population,” the researchers wrote in the Journal of Health Population and Nutrition. “However, no significant effects were found on appetite, inflammation, or oxidative stress parameters, except for TAC [total antioxidant capacity] when comparing the two groups.”
Single A-GPC dose provides cognitive boost in healthy men
A study published in the journal Nutrients provided new insights into the effects of Alpha-Glycerylphosphorylcholine (A-GPC) supplementation on multiple domains of cognitive function in a group of young, healthy males shortly after ingestion.
“While previous research has indicated potential for A-GPC to acutely improve cognition in clinical populations, extending these outcomes to healthy individuals can be potentially meaningful for a wide variety of populations such as athletes, race car drivers, military operators and other non-athletic populations who desire and have a need to improve their mental performance,” wrote study author Chad Kerksick, PhD, director of the Exercise and Performance Nutrition Laboratory at Lindenwood University.
The study evaluated the effects of the GeniusPure-branded A-GPC on a series of both cognitive and physical performance measures in 20 resistance-trained males between the ages of 20 and 55 who consumed a placebo, 315 mg A-GPC or 630 mg A-GPC on separate visits. The ingredient is manufactured by NNB Nutrition, which provided funding for the study through a restricted grant to contract research organization Applied Health Sciences.
“The primary findings from the current study highlight the statistically significant improvement in Stroop total score when participants were supplemented with both HD and LD when compared to PL,” Dr. Kerksick reported. “Additionally, outcomes revealed that the HD group spent significantly less time (they completed the test faster) on the test when compared to PL.”
He called for further research to evaluate longer supplementation periods, additional cognitive domains and real-world performance settings.
Key takeaways
- Male performance science is widening beyond the gym, with outcomes spanning physical recovery, mental performance (attention/skill execution), stress and mood, and sexual function/aging-related quality-of-life measures.
- Recovery/resilience is the dominant storyline, with many studies aiming to speed return-to-performance after stressors (hard training, exhaustive endurance, or day-to-day stress) rather than only boosting peak output.
- The gut shows up as a cross-cutting mechanism, tied to stress response (gut–brain axis), GI comfort/regularity, immune/barrier integrity and nutrient utilization.
- The evidence is promising but still patchy for the outcomes explored, with many small, narrow studies and frequent reliance on questionnaires/biomarkers—highlighting the need for replication, broader demographics and clearer real-world endpoints.
