Natrol Melatonin 5 mg Time Release

Our assessment

The evidence shows that while calcium is essential for bone health and nerve function, the safety profile of high-dose supplementation requires careful consideration. For a general audience, we recommend prioritizing food sources and discussing any supplement plan with your healthcare provider, as the data reveals notable risks and drug interactions [NIH ODS].

How it works

Think of calcium as a building block and a messenger. It supports bone mineralization, helping to maintain dense, strong bones, and it plays a role in neuromuscular relaxation, meaning it helps your muscles relax and your nerves send signals properly [NIH ODS].

Safety profile

FDA has received a total of 592,059 adverse event reports across all supplement categories. For calcium specifically, the data indicates that high intakes might increase the risk of heart disease and prostate cancer. Very 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] [FDA data]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Data not available for a specific dose or product recommendation for Natrol Melatonin 5 mg Time Release. For calcium supplementation in general, the data does not provide a specific recommended daily allowance for this context. We advise you to be cautious with high-dose calcium supplements due to the potential for serious side effects and drug interactions. Always discuss with your doctor before starting, especially if you take any medications for bone health, thyroid conditions, or infections [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