MegaFood One Daily Iron Free

Our assessment

The evidence shows that MegaFood One Daily Iron Free is a multivitamin supplement that contains calcium. For a general audience seeking a comprehensive daily supplement without iron, this product provides a key mineral for bone health. However, the data provided does not include the specific dosage of calcium or any other ingredients in this formulation, so we cannot fully evaluate its completeness or potency against established daily recommendations.

How it works

Calcium works as a structural component for your bones and teeth, supporting bone density and mineral deposition. It also plays a role in neuromuscular relaxation, which helps your muscles and nerves function properly [NIH ODS]. Think of calcium as the building block your body uses every day to maintain a strong skeletal framework.

Safety profile

FDA has received a total of 592,059 adverse event reports across all supplement categories. For this specific product, data on side effects is not available. However, regarding the ingredient calcium, some research suggests that 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 medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Because the exact dosage of calcium in this product is not provided in the available data, we cannot confirm if it meets your individual needs. For most adults, the goal is to get calcium from food first. If you choose this supplement, be aware of its potential to interfere with certain medications and take it at a separate time from those drugs [NIH ODS]. We recommend consulting with your healthcare provider to determine if this specific formulation is appropriate for you, especially given the lack of complete ingredient information.

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