Beta-Hydroxybutyrate Salts
Also known as: BHB salts, beta-hydroxybutyrate (racemic) salts, exogenous ketone salts
Randomized human studies show that oral BHB salts reliably increase blood ketone concentrations (BHB and acetoacetate). Trials and systematic reviews examining exercise performance report mostly null or mixed effects, and a small clinical pilot in PTSD showed within-group symptom change but no significant between-group effect. One controlled trial found acute increases in markers of NLRP3 inflammasome activation after ketone supplementation.
Last reviewed: 2026-10-14 · 5 indexed studies
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Overview
Beta-hydroxybutyrate salts are oral exogenous ketone preparations that acutely raise circulating beta-hydroxybutyrate and acetoacetate. Human trials report mixed effects on exercise performance and variable clinical signals in small therapeutic pilots, while some immune markers may increase acutely after supplementation.
Mechanism & Function
Mechanism of Action
Oral BHB salts provide exogenous beta-hydroxybutyrate that raises plasma BHB and acetoacetate, supplying alternative oxidative substrates to peripheral tissues and altering substrate metabolism. Acute increases in circulating ketones may modulate inflammatory signalling (NLRP3 pathways) and cellular energy provision.
Physiological Role
Provides circulating ketone bodies as alternative fuel and signalling metabolites; may influence cellular energy metabolism and inflammatory signalling.
Primary Pathways
Performance / Health Relevance
Exogenous BHB salts can raise available circulating ketone substrates that in theory alter fuel use during exercise, but clinical trials and systematic reviews show inconsistent effects on endurance and power, with more null and some negative findings than clear benefits.
Evidence Review
Practical Use & Dosage
- Minimum Effective Dose
- Not established; single-dose studies used approximately 0.3 g BHB/kg body weight.
- Optimal Range
- Not established; human studies in abstracts used single doses ≈0.3 g/kg and multi-day dosing of 14 g/day (7 g twice daily) in a small PTSD trial.
- Upper / Caution Level
- Not established
- Timing
- Single acute doses raise plasma ketones within 30 minutes; timing relative to exercise or symptom measurement varies by study.
- Best Format
- Oral racemic BHB salts (powder/solution)
- Bioavailability
- Shown to increase plasma beta-hydroxybutyrate and acetoacetate concentrations within 30 minutes in controlled trials.
- Absorption Considerations
- Many trials used racemic (D/L) mixtures; interconversion between ketone bodies is evident and levels vary by formulation.
Safety & Interactions
Side Effects
- •Not well characterised in provided abstracts; gastrointestinal effects commonly reported in other literature but not specified here
- •Potential electrolyte load from salt formulations (implicit with salts)
Contraindications
- Not specified in provided abstracts
Drug Interactions
- •Not specified in provided abstracts
Who Should Avoid
- •Individuals needing sodium/potassium restricted diets should be cautious due to salt content
- •People with poorly controlled metabolic or renal disease until more data are available
Monitoring
Monitor electrolytes if using repeated dosing because salts contribute to mineral load; clinical monitoring advised in patients with metabolic, renal or cardiovascular disease.
Frequently Asked Questions
Auto-generated from indexed evidence — dosage, safety, interactions, and more.
When is Beta-Hydroxybutyrate Salts typically used or indicated?
Beta-Hydroxybutyrate Salts is most commonly used for: Raise circulating ketone bodies acutely, Attempted ergogenic aid for exercise performance, Adjunctive use in neuropsychiatric or metabolic conditions. Provides circulating ketone bodies as alternative fuel and signalling metabolites; may influence cellular energy metabolism and inflammatory signalling.
How does Beta-Hydroxybutyrate Salts work?
Oral BHB salts provide exogenous beta-hydroxybutyrate that raises plasma BHB and acetoacetate, supplying alternative oxidative substrates to peripheral tissues and altering substrate metabolism. Acute increases in circulating ketones may modulate inflammatory signalling (NLRP3 pathways) and cellular energy provision.
What is the recommended dose of Beta-Hydroxybutyrate Salts?
The optimal range is Not established; human studies in abstracts used single doses ≈0.3 g/kg and multi-day dosing of 14 g/day (7 g twice daily) in a small PTSD trial.. with a minimum effective dose of Not established; single-dose studies used approximately 0.3 g BHB/kg body weight.. Best taken: Single acute doses raise plasma ketones within 30 minutes; timing relative to exercise or symptom measurement varies by study.. Upper / caution level: Not established.
What are the side effects of Beta-Hydroxybutyrate Salts?
Reported side effects include: Not well characterised in provided abstracts; gastrointestinal effects commonly reported in other literature but not specified here; and Potential electrolyte load from salt formulations (implicit with salts). Monitoring: Monitor electrolytes if using repeated dosing because salts contribute to mineral load; clinical monitoring advised in patients with metabolic, renal or cardiovascular disease.
Does Beta-Hydroxybutyrate Salts interact with medications?
Known or theoretical interactions: Not specified in provided abstracts. Always check with a clinician before combining with prescription medication.
Who should avoid Beta-Hydroxybutyrate Salts?
Beta-Hydroxybutyrate Salts is generally not recommended for: Individuals needing sodium/potassium restricted diets should be cautious due to salt content; People with poorly controlled metabolic or renal disease until more data are available; and Not specified in provided abstracts.
How strong is the evidence for Beta-Hydroxybutyrate Salts?
Evidence level: Limited (overall score 50/100), based on 5 indexed studies on SuppIndex.
Research & References (5)
Oral Ketone Supplementation Acutely Increases Markers of NLRP3 Inflammasome Activation in Human Monocytes.
Randomized double-blind placebo-controlled study; single-dose ketone salts (0.3 g BHB/kg) raised blood BHB and was associated with increased markers of NLRP3 inflammasome activation (caspase-1) in LPS-stimulated whole blood.
Effectiveness of Exogenous Ketone Salts in Enhancing Circulating Acetoacetate Levels-A Pilot Study in Healthy Adults.
Randomized triple-blind placebo-controlled crossover pilot: ketone salt increased plasma acetoacetate and beta-hydroxybutyrate significantly compared with placebo in healthy adults 30 minutes after ingestion.
A randomized, double-blind, clinical pilot trial of adjunct ketone supplement compared to placebo for treating posttraumatic stress disorder.
Randomized, double-blind pilot in PTSD: ketone supplement providing 7 g BHB per dose (14 g/day) led to a within-group decrease in PTSD checklist scores but no statistically significant difference between ketone and placebo groups, study limited by small sample size (n=21).
Utility of Ketone Supplementation to Enhance Physical Performance: A Systematic Review.
Systematic review of randomized trials on ketone supplementation for physical performance (10 studies, 112 participants): of 16 performance outcomes 3 were positive, 10 null and 3 negative; ketone supplements were grouped into esters and salts/precursors and heterogeneity was high, making conclusions difficult.
Clinical Benefits of Exogenous Ketosis in Adults with Disease: A Systematic Review.
Systematic review of exogenous ketosis in adults with disease (51 studies): suggested potential benefits across neurological, metabolic and cardiovascular disorders but evidence often relied on surrogate endpoints and ketone esters were favoured for achieving tolerable therapeutic ketosis; results are preliminary.
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Research Overview
Limited EvidenceCite this ingredient
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Stable URL
https://thesuppindex.com/ingredients/beta-hydroxybutyrate-salts
SuppIndex. (2026). Beta-Hydroxybutyrate Salts: Evidence summary, dosage and clinical studies. Retrieved October 16, 2026, from https://thesuppindex.com/ingredients/beta-hydroxybutyrate-salts
Based on 5 indexed studies · Evidence level: Limited.
Goal Ratings
Stack Compatibility
May be combined with other supplements but effects on substrate utilisation and acid/base balance should be considered; evidence in abstracts does not address specific combinations.