InterPlexus Magnesium 3

Our assessment

The evidence shows that InterPlexus Magnesium 3 contains calcium, which is a critical mineral for your body. However, our assessment is that the data provided is incomplete regarding the specific dosage and other ingredients in this product. The available information on calcium is clear: it supports bone density and nerve signaling [NIH ODS]. You should be aware of the risks and interactions associated with calcium supplements before deciding if this product is right for you.

How it works

Think of calcium as a key structural component for your skeleton and a critical messenger for your nervous system. It works through bone mineralization, helping to deposit minerals into your bone matrix to maintain density [NIH ODS]. Additionally, calcium is essential for neuromuscular relaxation, meaning it helps your muscles relax and your nerves send signals properly [NIH ODS].

Safety profile

Data not available for the specific side effects of this product from the provided FDA data. The FDA has received 592,059 total adverse event reports across all supplement categories [FDA data]. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Before taking InterPlexus Magnesium 3, you should check the label for the exact amount of calcium per serving. Because calcium has significant risks and medication interactions, you should speak with your doctor or pharmacist before starting this supplement, especially if you take any prescription medications [NIH ODS]. Start with the lowest effective dose and monitor for any side effects like constipation or nausea [NIH ODS].

Supplement labels contain several key sections regulated by the FDA:

• Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
• Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
• % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
• Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
• Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide