MusclePharm Arnold Schwarzenegger Iron Pump Watermelon

Our assessment

The evidence shows that this product contains calcium, a mineral essential for bone health and muscle function. Our assessment is that while calcium is a necessary nutrient, the specific benefits of this supplement depend entirely on your individual dietary intake and health status. The data does not provide specific dosage information for this product, so you must rely on the product label [NIH ODS].

How it works

Think of calcium as a key building block for your body. It supports bone mineralization to maintain strong bones and density, and it plays a critical role in neuromuscular relaxation, helping your muscles relax and nerves signal properly after activity [NIH ODS].

Safety profile

FDA received 592,059 total adverse event reports across all dietary supplements, but specific report counts for this product are not available. Some research suggests high calcium intakes may increase the risk of heart disease and prostate cancer. High blood and urine levels of calcium can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. Calcium can also reduce absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Start by checking your current calcium intake from food and other supplements. If you are not meeting the recommended daily allowance, this product may help, but you should consult your healthcare provider first. Be cautious of drug interactions, especially if you take thyroid medication or antibiotics. Always read the label for exact dosage [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