If this is a vitamin supplement it probably would require a kosher certification. (Are you using it for dieting) If your doctor proscribes it as medically necessary and it will impact you health then it would be permitted. For example, when taking chemo therapy food taste metallic this will sweeten it without adding sugar.
This product has not been approved by the FDA in the USA. Basically what it does is make sour things such as lemon taste sweet.