Common gastrointestinal adverse effects include nausea, vomiting, diarrhea, constipation, and abdominal discomfort
Castro-Portuguez R, Sutphin GL (2020) Kynurenine pathway, NAD+ synthesis, and mitochondrial function: Targeting tryptophan metabolism to promote longevity and healthspan
For men with low testosterone levels, studies have also found that Acetyl L-Carnitine could help to boost natural testosterone levels, with levels thought to begin increasing in a matter of weeks with regular supplementation
While palpitations are not a common side effect for everyone, they are often linked to dehydration, low blood sugar, or the bodys natural sympathetic nervous system response to a new medication