MegaFood Multi for Women 40+

Our assessment

The evidence shows that MegaFood Multi for Women 40+ is a general multivitamin. Our assessment is based on the data for its key ingredient, calcium. This product provides a foundation for bone health, but it is not a treatment for any specific condition. You should view it as a supplement to a balanced diet, not a replacement for one.

How it works

The primary mechanism for the calcium in this formula is bone mineralization, which supports bone density and mineral deposition [NIH ODS]. It also supports neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS]. Think of calcium as the building block your body uses to keep your skeleton strong and your nervous system communicating effectively.

Safety profile

Data not available for this specific product. For the ingredient calcium, safety data indicates potential risks. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, constipation, nausea, and abnormal heart rhythms [NIH ODS]. Some research suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. FDA received 592,059 total adverse event reports across all dietary supplements, but specific report counts for this product are not available [FDA data]. You should be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].

Our recommendation

Our recommendation is to take this product as directed on the label. Because it contains calcium, take it at a different time of day than any prescription medications you use, especially thyroid medication or antibiotics. Do not exceed the recommended serving, as high calcium intakes carry risks [NIH ODS]. If you have a history of kidney stones or heart disease, consult your healthcare provider before starting this supplement.

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