June 15 (Reuters) - Vanc Pharmaceuticals Inc VANC.V :
* Vanc Pharmaceuticals says responds to demand letter from canagen pharmaceuticals, in which canagen claims compensation from vanc of $510,000
* Vanc Pharmaceuticals says believes that Canagen claims are "wholly without merit", intends to defend its position if an action is commenced Source text for Eikon: ID:nCCNcSnzta Further company coverage: VANC.V