DX Keto If a sweetener is not allowed to be used in specific circumstances, a clear warning is printed on the packaging. This is, for example, the case for people with phenylketonuria, who are not allowed to ingest aspartame or other sources of the amino acid phenylalanine.The European Food Safety Authority (EFSA) conducts extensive research into the safety of a substance before it can be added to products. This does not only apply to sweeteners, but also to dyes, flavor enhancers or preservatives. If the result is that it is safe enough to eat or drink daily, the European Union will give this additive an E number. https://www.baysidepetroleum.com/ https://www.facebook.com/DX-Keto-103650841113292/