Giacinto Asprella Libonati, Antonello Leone, Salvatore Martellucci, Andrea Gallo, Roberto Albera, Sergio Lucisano, Maurizio Bavazzano, Giuseppe Chiarella, Pasquale Viola, Francesco Galletti, Francesco Freni, Francesco Ciodaro, Vincenzo Marcelli, Giuseppe Tortoriello, Leonardo Scotto di Santillo, Pasqualina Maria Picciotti, Jacopo Galli, Silvano Vitale, Nicola Quaranta, Giada Cavallaro, Paolo Gamba, Roberto Teggi, Iacopo Cangiano, Mario Faralli, Annalisa Barboni, Aldo Messina, and Giusi Graziano
Benign paroxysmal positional vertigo (BPPV) usually has a favorable course, although it is possible to observe BPPV with a high recurrence rate. Previous studies suggested that vitamin D deficiency might affect BPPV recurrences, and oxidative stress might play a complementary role in BPPV pathogenesis. This multicentric trial aimed to evaluate the effectiveness of oral nutritional supplementation with a compound of alpha-lipoic acid, Carnosine, and Zinc (LICA® (Difass International, Coriano (RN), Italy)), vitamins of group B and vitamin D in preventing BPPV recurrences. A total of 128 patients with high recurrence-BPPV were randomized in three arms: Arm 1 consisted of subjects with “insufficient” or “deficient” vitamin D blood levels, treated with daily oral supplementation of LICA®, vitamins of group B and vitamin D3 (800 UI), Arm 2 included BPPV subjects with “sufficient” vitamin D who did not receive any nutritional support, and Arm 3 included subjects with a “sufficient” serum concentration of vitamin D who received supplementation with a compound of LICA® and Curcumin. After six months of follow-up, a significant reduction of BPPV relapses compared to the baseline was found only in Arm 1 (−2.32, 95% CI: 3.41–1.62, p-value < 0.0001). Study results suggested that oral nutritional supplementation with vitamin D3 plus antioxidants can prevent relapses in patients suffering from high recurrence-BPPV.