Lolo, that is really interesting! I started getting my D levels checked about 2 years ago and continue to be in range without supplementing beyond what my daily multi provides. Do you have any links that you could share regarding what you read?
Location: Texas
Type: 3b/3c (i), below shoulder length.
CO wash: A-O GPB LYY, Desert Essence Coconut, Oribe Silverati
Leave-ins: Curl Junkie Beauti-Curls, KCKT, cno overnight
Styling: BRHG, MGA Sculpting Gel, A-O Mandarin Magic Gel, LOTD AVG, LALSG, CJ Pattern Pusha
DT: Curl Junkie Deep Fix, Briogeo Don't Despair Repair!