Herb Pharm Rhodiola

Our assessment

The evidence shows that while this product contains calcium, the specific data for Herb Pharm Rhodiola is not available for its primary ingredient. For calcium, we can assess general safety and efficacy based on NIH ODS data. The evidence shows that calcium is essential for bone mineralization and neuromuscular relaxation [NIH ODS]. However, you should be aware that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].

How it works

Think of calcium as a structural building block — it supports bone density and mineral deposition, and also helps your muscles relax and nerves signal properly [NIH ODS]. For the specific herb rhodiola in this product, data on its mechanism is not available.

Safety profile

Data not available for specific adverse events for this product. For calcium, which is a key ingredient, FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, high levels 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

Data not available for the specific benefits of this Herb Pharm Rhodiola product. For calcium, start with food sources first. If you take a supplement, avoid exceeding the tolerable upper intake level. Check with your doctor if you take medications like thyroid hormone or antibiotics, as calcium can interfere with their absorption [NIH ODS]. Without specific data on this product's primary herb, we cannot make a confident recommendation for its intended use.

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