Tennis Player Couple Makes $70 Million in a Year By Selling Superfood Powders

Indeed, the former tennis player couple sorted out everything they can do to fight Michael’s cancer. The pursuit even led to Kristel discovering the powders that he believed helped in his recovery.

Based on the article, Kristel de Groot prepared a mix of the powders of barley grass, spirulina, chia seeds, wheatgrass, and other healthy ingredients. It became part of Michael’s diet as he battled against cancer.