Wheat Ridge, COLORADO, March 22, 2022 (GLOBE NEWSWIRE) -- GenTech Holdings, Inc. (OTC Pink: GTEH) ("GenTech" or the "Company"), (a/k/a Supplement Group (USA) Inc.) (www.gentechholdings.com) an emerging leader in the Functional Food (www.sinfit.com) and Nutritional Supplement (www.americanmetabolix.com) marketplaces, updates investors on its retail penetration for its brand Fizzique (www.drinkfizzique.com) as it continues to receive orders from several national and regional retailers as well as increasing its online availability.