**Acknowledgements**

Virgílio G. Uarrota thanks Vicerrectoria de Investigacion y Estudios Avanzados of Pontificia Universidad Católica de Valparaiso—Chile (VRIEA—PUCV project 2018) for sponsorship.

*From Neglected and Underutilized Crops to Powerful Sources of Vitamin A: Three Case Studies… DOI: http://dx.doi.org/10.5772/intechopen.84829* 
