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Head-to-head evidence comparison — which supplement is right for you?
Beetroot and Casein Protein are closely matched across evidence, studies, and safety.
Verdict
Likely helps
27 of 30 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
4 of 4 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Beetroot and Casein Protein have evidence — compare verdict strength side-by-side.
400-500mg nitrates (or 500ml beetroot juice)
2-3 hours before exercise
Concentrated beetroot shots (70ml)
30-40g before bed
30-60 minutes before bed, Between meals for sustained protein
Micellar Casein powder
2-3 hours after intake
2-3 hours
Immediate
30-60 minutes
Overnight
2-4 weeks
4-8 hours
Always
Dietary Nitrate Supplementation and Exercise Performance: An Umbrella Review of 20 Published Systematic Reviews with Meta-analyses
Sports Medicine (2025) · Meta analysis · n=2000
Twenty systematic reviews with meta-analyses, representing 180 primary studies and 2672 unique participants, met the inclusion criteria.
Effects of Beetroot Juice on Physical Performance in Professional Athletes and Healthy Individuals: An Umbrella Review
Nutrients (2025) · Systematic review · n=1500
Fifteen meta-analyses were included in this Umbrella Review.
Sport supplementation in competitive swimmers: a systematic review with meta-analysis
Journal of the International Society of Sports Nutrition (2025) · Meta analysis · n=23
This revision included 23 studies, 16 of them (69.6%) qualified as excellent and 7 (30.4%) as good at the methodological level based on the punctuation in the PEDro scale.
Effects of supplementation with milk protein on glycemic parameters: a GRADE-assessed systematic review and dose-response meta-analysis
Nutrition journal (2023) · Meta analysis · n=1851
The findings of this study suggest that supplementation with MP may improve glycemic control in adults by reducing the values of fasting insulin, FBG, and HOMA-IR.
Pre-Sleep Casein Supplementation, Metabolism, and Appetite: A Systematic Review
Nutrients (2021) · Systematic review · n=11
However, it remains unclear what the effect of this nutritional strategy is on non-muscular parameters such as metabolism and appetite in both healthy and unhealthy populations.
Pre-Sleep Protein Ingestion to Improve the Skeletal Muscle Adaptive Response to Exercise Training
Nutrients (2016) · Review
Protein ingested prior to sleep is effectively digested and absorbed, and thereby stimulates muscle protein synthesis rates during overnight recovery.
Based on meta-analysis of 2000+ subjects showing 515-1017mg effective range. Effects more pronounced in hypoxic conditions and fatigue states. Individual response varies significantly between athletes vs non-athletes.
Based on systematic review (n=387) showing pre-sleep casein enhances training adaptations and increases muscle fiber size. Optimal dose identified as 30-40g. Limited to pre-sleep timing and requires concurrent exercise training.
AI-estimated from published studies. Interpret as directional guidance.
Both Beetroot and Casein Protein are closely matched — the best choice depends on your specific health goals.
For speed up recovery, Casein Protein has a higher relevance score (85 vs 60).
No known interactions between Beetroot and Casein Protein have been documented in our database. However, always consult a healthcare provider before combining supplements.