Any major diet or lifestyle change can come with some slight side effects, as you are making some significant changes that your body simply isn’t used to – yet. This can include temporary side effects of things, such as lethargy and headaches. Fortunately, they do go away fairly quickly once your body begins to adjust and you can keep them at bay by staying hydrated and getting your electrolytes in. Additionally, these side effects are 100% naturally occurring, unlike the side effects you may experience from things such as prescription medications. Most importantly, if your side effects are prolonged or worsening, you may wish to speak with your healthcare provider.