3-Hydroxybutyric Acid–Sodium 3-Hydroxybutyrate Complex for GI Tolerance

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Solution Overview

Problem

Existing ketone body supplements, such as β-hydroxybutyric acid and its salts, face issues of strong acidity, high hygroscopicity, gastrointestinal side effects, electrolyte imbalance, and unpleasant taste, limiting their use in dietary and nutritional supplements.

Innovation Solution

A complex of 3-hydroxybutyric acid and sodium 3-hydroxybutyrate is formulated with specific ratios and configurations, ensuring balanced ion composition and crystalline form, prepared through controlled mixing and solvent precipitation, to overcome these issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If β-hydroxybutyric acid is used as exogenous ketone supplement, then ketone body supply is improved, but strong acidity causes gastrointestinal side effects and limits usage amount

Engineering Contradiction:
Improveamount of ketone bodiesVSAvoidgastrointestinal side effects
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent uses a weak base (such as L-arginine, L-citrulline, or amino acid salts) as an intermediary substance to neutralize the strong acidity of β-hydroxybutyric acid. This intermediary reacts with the acid to form a salt that maintains the ketone body functionality while reducing gastrointestinal irritation, thereby resolving the contradiction between providing adequate ketone supply and avoiding harmful gastrointestinal effects

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the chemical parameters of the ketone supplement by converting pure β-hydroxybutyric acid into a salt form with a weak base. This parameter change (from acid to salt) fundamentally alters the pH properties and gastrointestinal tolerance while preserving the ketone body's metabolic function, allowing higher doses to be administered without causing harmful side effects

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If β-hydroxybutyric acid salts (sodium, magnesium, calcium, potassium) are used to reduce acidity, then acidity problem is solved, but electrolyte imbalance and salt overload occur

Engineering Contradiction:
ImproveacidityVSAvoidelectrolyte imbalance
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent employs amino acid-based weak bases (such as L-arginine or L-citrulline salts) as alternative counterions instead of traditional mineral salts. These amino acid salts provide the necessary pH buffering without contributing to electrolyte overload or imbalance, effectively replacing the harmful mineral salt components while maintaining the acid-neutralizing function

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent creates a composite salt structure combining β-hydroxybutyrate anion with amino acid-based cations (such as arginine or citrulline). This composite material integrates the acid-neutralizing capability with the benefit of not causing electrolyte imbalance, as the amino acid-based counterions are metabolically different from traditional mineral electrolytes and do not produce the same overload effects

Inventive Principle:
Principle #40Composite materials

3Ease of manufacture

If simple physical mixing of BHB acid and salt is performed, then preparation simplicity is improved, but uniform mixing is difficult to achieve

Engineering Contradiction:
Improvepreparation simplicityVSAvoidmixing uniformity
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The patent merges the acid and base components in a controlled chemical reaction rather than simple physical mixing. This chemical combination forms a homogeneous salt product where the β-hydroxybutyrate and amino acid counterion are chemically bonded at the molecular level, ensuring complete uniformity throughout the material without the segregation issues inherent in physical mixtures

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The complex provides a stable, palatable, and effective source of ketone bodies with reduced acidity, hygroscopicity, and electrolyte imbalance, suitable for dietary supplements and beverages, enhancing physical and cognitive performance.

Implementation Method 1

prepared through controlled mixing and solvent precipitation

Methodology Applied
Scientific EffectPrecipitation: Precipitation

Implementation Method 2

ensuring balanced ion composition and crystalline form

Methodology Applied
Scientific EffectCrystallisation: Crystallisation

Data Source

PatentEP4595774A1Complex of 3-hydroxybutyric acid and sodium 3-hydroxybutyrate and preparation method therefor
Publication Date: 2025.08.06 NANJING NUTRABUILDING BIO TECH CO LTD
  • EP4595774A1 patent drawingFigure 1A
  • EP4595774A1 patent drawingFigure 1B
  • EP4595774A1 patent drawingFigure 1C

AI summary

The invention discloses a complex of 3-hydroxybutyric acid and sodium 3-hydroxybutyrate and a preparation method thereof. The complex provided by the invention effectively solves the acid/salt load and gastrointestinal side effects associated with the existing products, has good taste comfort, and has a good ketogenic effect, and can be better used as a dietary or nutritional supplement.