Wrecked can be stacked with other supplements safely. We advise that you take a look at the ingredient list in its entirety before adding in other supplements to ensure there are no adverse reactions to the mixing of ingredients, or that you aren’t overdoing it on something like caffeine. Because there is already such a high dose of caffeine in this supplement, it may be best to avoid other types of caffeine in conjunction with this supp, but ultimately, it is up to the user (and their physician) to assess what will or won’t work for them.