MCT C8 (Caprylic Acid)

Summary

Pure C8 MCT oil (caprylic acid) is the fastest form of MCT to convert into ketones, providing brain energy and a sense of mental clarity often sought in low-carb or ketogenic lifestyles.
It’s rapidly absorbed and oxidized by the liver but requires gradual adaptation to avoid digestive discomfort.

🟢 What It Does (Strong Evidence)

• Raises blood ketone levels rapidly, faster than C10 or blended MCTs.
• May enhance focus and alertness in some individuals.
• Provides an alternative energy source for the brain during fasting, keto, or low-carb states.
• May slightly improve satiety when used moderately.

🟡 What’s Unclear (Gray Areas)

• Cognitive benefits are mostly subjective and not well confirmed in clinical trials.
• Limited evidence on physical performance enhancement outside ketogenic contexts.
• Digestive tolerance varies widely between users.

🔴 What It Doesn’t Do

• Does not cause weight loss without a calorie deficit.
• Does not replace a balanced diet.
• Does not provide lasting energy boosts without metabolic adaptation.

Dosage & Use (Non-prescriptive)

• Start with: 1 teaspoon/day → increase slowly up to 1 tablespoon/day (≈15–20 mL) if well tolerated.
• Consume with food at first, or mix into coffee (bulletproof style) or smoothies.
• Avoid high-heat cooking — MCT oil is not suitable for frying or baking.

💣 Upper Limit (UL)

Note: $Introduce gradually to avoid digestive discomfort; no known toxicity at standard intakes.
Intakes above 20 mL/day offer no added benefit and may cause digestive upset (cramps, diarrhea).

Safety

• Well tolerated when introduced gradually.
• Mild gastrointestinal effects (bloating, cramps) are common early on.
• Caloric contribution: ≈115 kcal per tablespoon.
• Caution for those with liver or pancreatic conditions or under medical diets.

Risks & Interactions

• Digestive discomfort if intake increased too quickly; titrate gradually.
• Adds a notable caloric intake.
• ⚠️ Use caution in cases of liver or pancreatic issues.
• Monitor blood lipids in individuals with cardiovascular history.

Quality Tips

• Choose pure C8 (caprylic acid) sourced from coconut, not palm oil.
• Ensure it’s additive-free, solvent-free, and packaged in an opaque bottle.
• Look for labels specifying “100% C8” or “caprylic acid only.”
• Ideal for keto, intermittent fasting, or those seeking stable brain energy.

Sources

• Examine.com — MCT Oil Review
• Health Canada — Lipid intake and safety guidelines