Discover which supplements to avoid with magnesium and why these interactions matter for absorption and consistent dosing. By understanding the typical pairs that interact, you can plan when to take magnesium and how to space it relative to other supplements to minimize interference. Supplements to avoid with magnesium include calcium, iron, zinc, and copper supplements. These minerals can compete for absorption in the gut or form complexes with magnesium that reduce its uptake. If your regimen includes multiple mineral supplements, consider taking magnesium at a different time of day or spacing doses by several hours. Key interactions to know involve mineral-to-mineral competition. When taken together, calcium and magnesium may compete for intestinal transport, while iron and zinc can interact with magnesium in ways that affect absorption. Review product labels for total mineral content and plan dosing so that high-dose minerals are not taken in the same moment. Essential safety tips to maximize absorption and ensure safe use include following label directions, avoiding megadoses, and considering total daily intake from all supplements. If you have kidney concerns or are taking prescription medications, consult a healthcare professional before making changes to your regimen. Maintain consistency in your schedule and store products according to the provided instructions.