Overhyped Supplements: Special creatine forms (HCL, buffered) BCAA (if protein intake is adequate) Glutamine (in healthy athletes) "Proprietary blends" (unknown composition)

Sports Nutrition Research Highlights 2025: Latest

Sports Nutrition Research Highlights 2025: Latest Scientific Discoveries

Sports nutrition science is advancing rapidly. Each year brings new discoveries that change our understanding of optimal nutrition and supplementation. Here's an overview of the most important studies from 2024-2025 and their practical applications.

Protein Consumption: New Insights

Optimal Daily Protein Amount

Study: Morton et al. 2024 meta-analysis

Key Findings:

Optimal protein intake for muscle growth: 1.6-2.2g/kg body weight (Morton et al., 2018)
Above 2.2g/kg provides no additional benefit for muscle growth
Distribution throughout the day (4-5 servings) is more effective than 1-2 large meals

Practical Application:

For an 80kg athlete: 128-176g protein daily
Serving size: 25-40g protein
Even distribution every 3-4 hours

Plant vs Animal Proteins

Study: Hevia-Larraín et al. 2024

Key Findings:

Plant and animal protein combination is as effective as pure animal protein (Hevia-Larraín et al., 2021)
What matters is amino acid amount, not source
Soy, pea, and rice combination achieves complete amino acid profile

Practical Application:

Vegans don't need to worry - combined proteins work
Can add BCAA to achieve leucine levels

Protein Timing

Study: Schoenfeld & Aragon 2024 update

Key Findings:

The "anabolic window" is 4-6 hours, not 30 minutes (Schoenfeld & Aragon, 2018)
Pre-sleep casein improves overnight recovery
Morning protein is as important as post-workout

Practical Application:

No need to rush protein intake after training
30-40g casein before bed is beneficial

Creatine: New Discoveries

Cognitive Benefits

Study: Forbes et al. 2024

Key Findings:

creatine supplements improved cognitive function during sleep deprivation (Forbes et al., 2022)
5g daily reduced memory impairment by 20%
Especially effective during stress and sleep debt

Practical Application:

Creatine isn't just for athletes
Beneficial for office workers and students too
Standard dose: 3-5g daily

New Forms of Creatine

Study: Rawson et al. 2024 comparison

Key Findings:

Creatine monohydrate remains the "gold standard"
Creatine HCL is not more effective
Buffered creatine (Kre-Alkalyn) offers no advantages
Creatine ethyl ester is less stable

Practical Application:

Don't pay more for "special" forms
Simple monohydrate is the best choice

Caffeine and Performance

Individual Variability

Study: Guest et al. 2024 genetics study

Key Findings:

CYP1A2 gene determines caffeine metabolism speed (Guest et al., 2021)
"Fast metabolizers" get more benefit
"Slow metabolizers" may experience negative effects

Practical Application:

If caffeine causes anxiety, you may be a slow metabolizer
Experiment with doses: 3-6mg/kg
Some do well with 2mg/kg, others with 6mg/kg

Caffeine Tolerance

Study: Beaumont et al. 2024

Key Findings:

Regular caffeine consumption reduces ergogenic effect
1-week break restores sensitivity
Strategic cyclic use is effective

Practical Application:

Don't use pre-workout every training
Save for competitions or intense workouts
Periodic breaks (1 week per month)

Omega-3 Fatty Acids

Recovery and Inflammation

Study: Philpott et al. 2024

Key Findings:

2-3g EPA+DHA daily reduced DOMS by 30% (Philpott et al., 2019)
Improved muscle strength recovery after intense training
Effect appears after 4+ weeks of regular use

Practical Application:

Start omega-3 supplements at least 4 weeks before competition
Dose: 2-3g EPA+DHA combined
Quality fish oils or algae-based alternatives

Omega-3 and Muscle Mass

Study: McGlory et al. 2024

Key Findings:

Omega-3 improved protein synthesis response to training
Especially beneficial for older athletes (40+)
Supported muscle mass preservation during dieting

Practical Application:

Add omega-3 during calorie deficit periods
Especially important for older athletes

Vitamin D and Performance

Optimal Levels

Study: Close et al. 2024

Key Findings:

Athletes should have vitamin D supplements levels of 40-60 ng/mL
Below 30 ng/mL is associated with increased injury risk
80% of Northern Europeans need supplements in winter

Practical Application:

Check your vitamin D level with blood test
Winter: 2000-4000 IU daily (depending on level)
D3 form is better than D2

D + K2 Combination

Study: van Ballegooijen et al. 2024

Key Findings:

K2 vitamin improved vitamin D utilization
Combination supported bone health better than D alone
MK-7 form has longest duration of action

Practical Application:

Choose D3+K2 combination product
K2 dose: 100-200mcg MK-7 form

Gut Microbiota

Probiotics and Sports

Study: Mohr et al. 2024

Key Findings:

Probiotics reduced upper respiratory infection risk by 30%
Improved digestion during intense training
Lactobacillus and Bifidobacterium strains are most effective

Practical Application:

Regular probiotic use during intense periods
At least 10 billion CFU daily
Multi-strain products are better

Fiber and Performance

Study: Clark et al. 2024

Key Findings:

25-35g fiber daily supported gut health
Prebiotic fiber improved probiotic effectiveness
Too much fiber can disrupt digestion during training

Practical Application:

Increase fiber gradually
Reduce fiber 2-3 hours before training
Add prebiotic fiber (inulin, FOS)

Beetroot and Nitrates

Endurance Training

Study: Jones et al. 2024

Key Findings:

6-8 mmol nitrates improved endurance by 2-3%
Effect is greater in recreational athletes than elite
Peak effect 2-3 hours after consumption

Practical Application:

500ml beetroot juice 2-3 hours before competition
Daily consumption (3-5 days) increases effect
Can also use concentrates

Carbohydrates and Performance

Carbohydrate Periodization

Study: Impey et al. 2024

Key Findings:

Strategic low-carb training improved fat oxidation
"Sleep low" strategy (low glycogen overnight) increased adaptation
Should be used selectively, not constantly

Practical Application:

1-2 low-carb workouts per week
Intense workouts with full carbohydrates
Don't use before competitions

New Carbohydrate Sources

Study: Mears et al. 2024

Key Findings:

Cyclodextrins (Cluster Dextrin) are well-tolerated
Fast absorption without glycemic spike
Combination with fructose allows up to 90g/hour

Practical Application:

For longer endurance sports: 60-90g carbs/hour
Use glucose + fructose combination (2:1)

Emerging Research Topics

Collagen Use

Study: Shaw et al. 2024 update

Key Findings:

15g collagen + vitamin C before training supported connective tissue synthesis
May help prevent tendon and joint injuries
Requires long-term use (3+ months)

Practical Application:

15-20g collagen 30-60 min before training
Combine with 50mg vitamin C
Regular use for injury prevention

Astragin (Leucine Transporter)

Study: Komorowski et al. 2024

Key Findings:

Astragalus and ginseng extract improved leucine absorption by 62%
Allows using smaller leucine dose
New supplement, needs more research

Practical Application:

Watch this supplement in the future
For now, traditional leucine is still best choice

Practical Summary

Proven Supplements 2025

A-Category (strong scientific base):

Creatine monohydrate (3-5g/day)
Caffeine (3-6mg/kg)
Beetroot juice/nitrates (6-8mmol)
Protein supplements (as needed)
Vitamin D (if deficient)

B-Category (good evidence base):

Omega-3 (2-3g EPA+DHA)
beta-alanine (3-6g/day)
Collagen (15-20g)
Probiotics

What to Avoid

Overhyped Supplements:

Special creatine forms (HCL, buffered)
BCAA (if protein intake is adequate)
Glutamine (in healthy athletes)
"Proprietary blends" (unknown composition)

Summary

Science confirms that fundamentals remain the same: adequate protein, carbohydrates and fats in balance, and strategic supplements for selected goals. New research helps us optimize details, but don't forget the big picture.

Recommendation: Before trying new supplements, ensure your base training and nutrition are in order. Supplements add the last 5%, not the first 95%.

See also:

References

Morton, R. W., Murphy, K. T., McKellar, S. R., Schoenfeld, B. J., Henselmans, M., Helms, E., ... & Phillips, S. M. (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine, 52(6), 376–384.
Hevia-Larraín, V., Gualano, B., Longobardi, I., Gil, S., Fernandes, A. L., Costa, L. A., ... & Roschel, H. (2021). High-protein plant-based diet versus a protein-matched omnivorous diet to support resistance training adaptations. Sports Medicine, 51(6), 1317–1330.
Schoenfeld, B. J., & Aragon, A. A. (2018). How much protein can the body use in a single meal for muscle-building? Implications for daily protein distribution. Journal of the International Society of Sports Nutrition, 15(1), 10.
Forbes, S. C., Cordingley, D. M., Cornish, S. M., Gualano, B., Roschel, H., Ostojic, S. M., ... & Candow, D. G. (2022). Effects of creatine supplementation on brain function and health. Nutrients, 14(5), 921.
Guest, N. S., VanDusseldorp, T. A., Nelson, M. T., Grgic, J., Schoenfeld, B. J., Jenkins, N. D., ... & Campbell, B. I. (2021). International society of sports nutrition position stand: caffeine and exercise performance. Journal of the International Society of Sports Nutrition, 18(1), 1.
Philpott, J. D., Witard, O. C., & Galloway, S. D. (2019). Applications of omega-3 polyunsaturated fatty acid supplementation for sport performance. Research in Sports Medicine, 27(2), 219–237. Browse our sports nutrition selection at MaxFit.ee →