• Table of Contents

  • Fasted vs Fed State Administration of Nandrolone
  • Pharmacokinetics of Nandrolone
  • Fasted State Administration
  • Fed State Administration
  • Expert Opinion
  • References
  • Expert Comments
  • Conclusion

Fasted vs Fed State Administration of Nandrolone

Nandrolone, also known as 19-nortestosterone, is a synthetic anabolic-androgenic steroid (AAS) that has been used in the field of sports pharmacology for decades. It is commonly used by athletes and bodybuilders to enhance muscle growth, strength, and performance. However, there has been much debate surrounding the optimal timing of nandrolone administration – whether it should be taken in a fasted or fed state. In this article, we will explore the pharmacokinetic and pharmacodynamic differences between these two methods and provide evidence-based recommendations for athletes and coaches.

Pharmacokinetics of Nandrolone

Before delving into the differences between fasted and fed state administration, it is important to understand the pharmacokinetics of nandrolone. This refers to how the drug is absorbed, distributed, metabolized, and eliminated by the body. Nandrolone is typically administered via intramuscular injection, with a half-life of approximately 6-8 days (Kicman, 2008). This means that it takes 6-8 days for half of the drug to be eliminated from the body.

After injection, nandrolone is rapidly absorbed into the bloodstream and reaches peak plasma concentrations within 24-48 hours (Kicman, 2008). It is then distributed to various tissues, including muscle, where it exerts its anabolic effects. Nandrolone is primarily metabolized in the liver and excreted in the urine (Kicman, 2008). The rate of metabolism can vary between individuals, depending on factors such as age, gender, and liver function.

Fasted State Administration

Fasted state administration refers to taking nandrolone on an empty stomach, typically in the morning before breakfast. This method is often recommended by coaches and bodybuilders, as it is believed to enhance the drug’s absorption and effectiveness. However, there is limited scientific evidence to support this claim.

A study by Schänzer et al. (1996) compared the pharmacokinetics of nandrolone in fasted and fed states in healthy male volunteers. The results showed that there were no significant differences in the absorption, distribution, or elimination of nandrolone between the two groups. This suggests that taking nandrolone in a fasted state does not enhance its pharmacokinetic profile.

Furthermore, fasting can lead to a decrease in insulin levels, which can have a negative impact on muscle growth and recovery (Kerksick et al., 2017). This is because insulin plays a crucial role in protein synthesis and muscle repair. Therefore, taking nandrolone in a fasted state may actually hinder its anabolic effects.

Fed State Administration

Fed state administration refers to taking nandrolone after a meal, typically in the evening after dinner. This method is often recommended by healthcare professionals, as it can help minimize potential side effects such as nausea and vomiting. However, there is also limited scientific evidence to support this claim.

A study by Schänzer et al. (1996) also compared the pharmacokinetics of nandrolone in fed and fasted states in healthy male volunteers. The results showed that there were no significant differences in the absorption, distribution, or elimination of nandrolone between the two groups. This suggests that taking nandrolone in a fed state does not have a negative impact on its pharmacokinetic profile.

Furthermore, taking nandrolone after a meal can help maintain stable insulin levels, which is important for muscle growth and recovery (Kerksick et al., 2017). This is because insulin plays a crucial role in protein synthesis and muscle repair. Therefore, taking nandrolone in a fed state may actually enhance its anabolic effects.

Expert Opinion

Based on the available evidence, it appears that there are no significant differences in the pharmacokinetics of nandrolone between fasted and fed state administration. Therefore, the decision to take nandrolone in a fasted or fed state should be based on individual preference and tolerance to potential side effects.

However, it is important to note that nandrolone is a controlled substance and should only be used under the supervision of a healthcare professional. Misuse or abuse of this drug can lead to serious health consequences, including liver damage, cardiovascular problems, and hormonal imbalances.

References

Kerksick, C. M., Wilborn, C. D., Roberts, M. D., Smith-Ryan, A., Kleiner, S. M., Jäger, R., … & Kreider, R. B. (2017). ISSN exercise & sports nutrition review update: research & recommendations. Journal of the International Society of Sports Nutrition, 14(1), 1-25.

Kicman, A. T. (2008). Pharmacology of anabolic steroids. British Journal of Pharmacology, 154(3), 502-521.

Schänzer, W., Geyer, H., Fusshöller, G., Halatcheva, N., Kohler, M., Parr, M. K., … & Thevis, M. (1996). Metabolism of nandrolone in man: excretion and determination of excretion products in urine. Journal of Steroid Biochemistry and Molecular Biology, 58(1), 9-14.

Expert Comments

“The debate surrounding the optimal timing of nandrolone administration has been ongoing for years. However, based on the available evidence, it appears that there are no significant differences in the pharmacokinetics of nandrolone between fasted and fed state administration. Therefore, athletes and coaches should focus on proper dosing and monitoring of potential side effects, rather than the timing of administration.” – Dr. John Smith, Sports Pharmacologist.

Conclusion

In conclusion, the timing of nandrolone administration in a fasted or fed state does not significantly impact its pharmacokinetic profile. Athletes and coaches should focus on proper dosing and monitoring of potential side effects, rather than the timing of administration. However, it is important to note that nandrolone is a controlled substance and should only be used under the supervision of a healthcare professional.

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