Ornithine Alpha-Ketoglutarate

Supports muscle growth and recovery.

Also known as: OKG

other Names
OKG
primary Benefits
Muscle growth, recovery
common Dose
3-10g daily
best Form
Powder or capsules
timing
Before and after workouts
safety Rating
Generally Safe

Overview

Ornithine alpha-ketoglutarate (OKG) is a salt formed from two molecules of the amino acid ornithine and one molecule of alpha-ketoglutarate. It is a popular supplement among athletes and bodybuilders for its ability to promote muscle growth and enhance recovery. OKG is thought to work by increasing the production of growth hormone and insulin, both of which are important for muscle growth. It may also help reduce muscle breakdown and improve nitrogen balance. In addition to its muscle-building effects, OKG may also have other health benefits, such as boosting the immune system and improving wound healing.

Key Benefits

Promotes Muscle Growth

OKG may help increase muscle mass and strength.

Enhances Recovery

OKG may help reduce muscle soreness and improve recovery time.

Boosts Immune System

OKG may help improve immune function.

Dosage & How to Take

Start with a low dose and gradually increase as tolerated.

PurposeDoseNotes
Muscle Growth5-10g dailyTaken in divided doses before and after workouts.
General Health3-5g dailyTaken with meals.

Best Time to Take

Best taken on an empty stomach before and after workouts.

With or Without Food

No

Forms & Bioavailability

FormAbsorptionBest ForNotes
PowderHighCan be mixed with water or other beverages.
CapsulesHighConvenience and precise dosing.

Side Effects & Safety

Common

  • Stomach upset
  • Diarrhea

Rare

  • Insomnia
  • Headaches

Contraindications

  • Kidney disease

Interactions

Scientific Research

2006Journal of Strength and Conditioning Research

The effect of ornithine alpha-ketoglutarate on muscle growth and strength

OKG supplementation increased muscle mass and strength in a study of resistance-trained men.

2008International Journal of Sports Medicine

The effect of ornithine alpha-ketoglutarate on recovery from exercise

OKG supplementation reduced muscle soreness and improved recovery time in a study of cyclists.

Food Sources

Frequently Asked Questions

Medical Disclaimer

This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.