Alcohol consumption can indeed have a negative impact on muscle recovery. According to a study published in the journal Nutrients, alcohol consumption can delay the recovery process and impair muscle protein synthesis [2].

When alcohol is consumed, it is metabolized by the liver, which prioritizes alcohol metabolism over other processes, including muscle recovery. This can result in delayed muscle repair and regeneration [2].

Furthermore, alcohol consumption can lead to dehydration, which is detrimental to muscle recovery. Dehydration can impair the delivery of nutrients and oxygen to the muscles, hindering the recovery process [3].

Alcohol also has a negative impact on sleep quality. It can disrupt the sleep cycle and reduce the amount of restorative deep sleep, which is essential for muscle recovery and growth [3].

Additionally, alcohol has been shown to increase inflammation in the body. Inflammation is a natural response to exercise-induced muscle damage, but excessive inflammation can hinder the healing process and prolong recovery time [2].

It is important to note that moderate alcohol consumption may not have a significant impact on muscle recovery. However, excessive or chronic alcohol consumption can have detrimental effects on the body's ability to recover from exercise [3].

In conclusion, alcohol consumption can prolong muscle recovery due to its negative effects on muscle protein synthesis, dehydration, sleep quality, and inflammation. It is advisable to limit alcohol consumption, especially after intense workouts, to support optimal muscle recovery.

Sources:
[2] Nutrients: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7739274/
[3] Healthline: https://www.healthline.com/health/fitness/drinking-after-workout