A low calorie sweetener for food products which avoids the off-taste of conventional substitute sweeteners. The low calorie sweetener includes an effective amount of artificial sweetener of neotame and a secondary substitute sweetener, preferably acesulfame-K. The artificial sweetener having, for example, about 75:25 - 95:5 of neotame and acesulfame-K has been found effective to avoid off-taste of conventional sweeteners.