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does l-carnitine really work The bright and the dark sides of supplementation: a systematic review | Journal of the International Society of Sports Nutrition Injectable L-Carnitine: Does It Really
Description
Regulation of human epithelial tight junction proteins by Lactobacillus plantarum in vivo and protective effects on the epithelial barrier

Yes, NAC dose can be beneficial to dogs provided there is proper use under the care of the veterinarian
You can also add another nutrient like vitamin D or taurine

[DOI] [PubMed] [Google Scholar] 44.Huang H.C., Xu K
