propionyl l carnitine coq10 NATURE TARGET CoQ10-200mg with PQQ L-Carnitine & Omega-3s, High Absorption Coenzyme-Q10 with BioPerine, Supports Heart and Immune System, Cellular-Energy-Production, 120 Servings : Health & Household Acetyl L-Carnitine
Description
(2013), which indicated that long-term supplementation of L-carnitine is effective for improving lipid profile of patients undergoing hemodialysis (more than 16 weeks)

223 European Medicines Agency

Patients experiencing unexplained weight changes should consult their GP, who may arrange thyroid function testing to rule out thyroid disorders before attributing symptoms solely to metabolic issues

Whatever approach you use, consistency is more important than timing
