Additionally, it supports collagen synthesis, enhances iron absorption, and bolsters the immune system
,
Ann Int Med 152(10):687688 De Flora S, Grassi C, Carati L (1997) Attenuation of influenza-like symptomatology and improvement of cell-mediated immunity with long-term N-acetylcysteine treatment
the combination is not clinically validated
They only use pasture raised chicken bones, grass-fed AND finished beef bones, and fresh organic herbs
Tell your doctor if you notice any of the following: Frequent side effects: agitation, dry mouth, headache insomnia, fishy odour of the urine, breath and sweat