Private equity firm TPG Growth has acquired a majority stake in SmartSweets, a Canadian sweets brand, for an undisclosed sum. SmartSweets manufactures a range of ‘better-for-you’ alternatives to traditional confectionery made with plant-based fibre. The sweets are said to contain between 87 and 92% less sugar than traditional sweets, as well as being free from artificial sweeteners, added sugar, and sugar alcohols. According to sources, SmartSweets doubled its sales last …