Hi Beth, Sue with Vessel here! It sounds like there may be something going on with the tips that are being shared... We would love the opportunity to look into this further. We have a dedicated team of Wellness coaches that can offer so much insight into those foods that will increase magnesium but not biotin. Included in the Vessel Membership is free nutritional coaching via chat (right from within the app!) but I'd love to offer you a free 15 minute wellness walkthrough with one of our coaches. They can look at your results with you (and especially the biotin tips you are reporting) and answer any questions you may have. You can schedule here: https://vesselnutritionist.as.me/Wellness-Walkthrough . You can also reach our support team at wegotyou@vesselhealth.com . We look forward to connecting with you Beth!