Patients with this condition typically require injectable B12
Combining them doubles GI side effects (nausea, gastroparesis risk) with no additional benefit
10.1016/j.jare.2018.06.005 17 KamalyN.YameenB.WuJ.FarokhzadO
The injection of NAD+ may cause adverse reactions and side effects, such as headache, shortness of breath, constipation, increased plasma bilirubin, and decreased levels of gamma glutamyl transferase, lactate dehydrogenase, and aspartate aminotransferase (10,18)
This means the participants were very early in social development including their gender identity, and so further evidence about the link between autistic traits and obsessional thoughts with GD is needed in older samples whose gender identities may be more developed