Caprylic acid (octanoic acid)
Synopsis of caprylic acid
Caprylic acid, also known as octanoic acid, is a medium-chain fatty acid (MCFA) with eight carbon atoms, naturally found in coconut oil, palm kernel oil, and human breast milk. It is known for its antifungal, antibacterial, and antiviral properties and is widely used in gut health protocols, especially for addressing Candida overgrowth, dysbiosis, and leaky gut. Unlike long-chain fats, caprylic acid is rapidly absorbed and metabolized by the liver for energy, making it also beneficial in ketogenic diets and brain-supportive nutrition.
Key health benefits of caprylic acid include:
- Antifungal activity, particularly effective against Candida albicans and other yeasts
- Antibacterial and antiviral effects, supporting immune defenses
- Supporting gut barrier integrity and reducing intestinal inflammation
- Balancing gut microbiota by inhibiting pathogenic organisms without disrupting beneficial bacteria
- Serving as a fast-acting energy source for brain and muscles in ketogenic or low-carb regimens
Caprylic acid is commonly used in:
- Candida-cleansing protocols and gut-healing supplements
- Medium-chain triglyceride (MCT) oil blends for energy and cognitive support
- Topical antifungal treatments (in diluted form)
- Nutritional therapy for epilepsy and neurological conditions as part of a ketogenic diet
Historical and Scientific Context:
Though not a traditional herbal remedy, caprylic acid–rich foods like coconut oil have been used for centuries in Ayurvedic and tropical medicine traditions for treating skin infections, digestive issues, and immune weakness. The isolated fatty acid gained scientific recognition in the 20th century for its broad-spectrum antimicrobial properties and quick metabolic conversion into ketones, fueling interest in metabolic health and brain energy applications.
Today, caprylic acid is a staple in integrative and functional medicine, especially in addressing:
- Yeast overgrowth
- SIBO (small intestinal bacterial overgrowth)
- Leaky gut and IBS
- Chronic fatigue and neurological dysfunction linked to microbial imbalances
It is available in capsule, liquid, or MCT oil form, often paired with oregano oil, berberine, or probiotics for comprehensive gut support. Its clean-burning energy profile and antimicrobial versatility make it a favorite in both digestive repair and metabolic optimization protocols.
Caprylic acid is used for these health conditions
Alzheimer's Disease (Scientific)
Antibiotics (alternatives to) (Scientific)
Fungal Infections (Scientific)
Infection (Scientific)
Infection (bacterial) (Scientific)
Memory and Brain Function (Scientific)
Parasites (general) (Scientific)
Parasites (tapeworm) (Traditional)
Thrush (Scientific)
caprylic acid is used to support these body systems
Digestive System (Scientific)
Gastrointestinal Tract (Scientific)
Intestinal System (Scientific)
Small Intestines (Scientific)
