 [ Symptoms ] is it safe to take take raspberry ketones and saint john is wort together [ Disease ] yes it probably is safe that said i want to add if you are taking raspberry ketones for weight loss you need to know there is absolutely no scientific evidence studies to support the claim that raspberry ketones cause weight reduction in adults because raspberry ketones are not well studied in humans it is impossible to say for certain if the product will negatively interact with st john is wort also be sure to read the raspberry ketones label carefully to determine whether or not the supplement contains any other active ingredients hope this helps