This is thought to be due to calciums ability to bind dietary oxalate in the intestines, which prevents oxalate absorption into the bloodstream, and eventually the kidneys and urine (Nazzal 2015)
DOI: 10.1590/1678-7757-2018-0107
Xianghua Yans lab, Huazhong Agricultural University)
xx: CARBONATED WATER, ACID (CITRIC ACID), FLAVOUR ENHANCER (ERYTHRITOL), TAURINE 0498) ACIDITY REGULATOR, SODIUM CITRATES FLAVOURINGS, PANAX GINSENG ROOT EXTRACT (0.089), PRESERVATIVES (SORBIC ACID, BENZOIC ACID), SWEETENERS, SUCRALOSE, ACESULFAME CAFFEINE 0.03%, L-CARNITINE L-TARTRATE 0.015%, VITAMINS (B3, B5, B6, B12), PURPLE SWEET POTATO CONCENTRATE, INOSITOL Environment Green-Score not applicable Not yet applicable for the category: Energy drinks The Green-Score is not yet applicable for this category, but we are working on adding support for it