Dietary and nutritional supplements; dietary and nutritional supplements for human consumption; dietary and nutritional supplements for human consumption for use as a histamine blocker; nanoemulsified histamine blocker comprised of dietary and nutritional supplements for human consumption, provided in a phospholipid encapsulation system; nanoemulsified histamine blocker for use as a dietary supplement containing vitamin c, sodium, quercetin dihydrate and luteeloin extract, provided in a phosp...