Herbal Authority Stevia With Inulin Fiber Powder

Our assessment

The evidence shows that this product contains two key ingredients: calcium and inulin fiber powder. For the calcium component, the data supports its role in bone health, but the specific dosage in this product is not listed, making a precise recommendation difficult. We cannot verify the amount of inulin or any other ingredient beyond what is stated on the label [NIH ODS].

How it works

Think of calcium as a structural building block for your bones, supporting bone density and mineral deposition. It also plays a role in neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS]. Inulin is a type of prebiotic fiber that may support digestive health by feeding beneficial gut bacteria, though specific data on inulin from this product is not available in the provided data.

Safety profile

FDA received a total of 592,059 adverse event reports across all supplement categories, but specific report counts for this product are not available. Based on the calcium data, high intakes might increase the risk of heart disease and prostate cancer. Side effects from excessive calcium include constipation, nausea, weight loss, extreme tiredness, frequent urination, and abnormal heart rhythms [NIH ODS]. Calcium can also reduce the absorption of medications such as bisphosphonates, tetracycline and fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data on side effects specific to the inulin component are not provided.

Our recommendation

We recommend you speak with your healthcare provider before starting this supplement, especially since the exact dosage of calcium and inulin is not listed on the label. If you are taking any medications (particularly for thyroid conditions, infections, or bone health), check for the interactions noted above [NIH ODS]. Without a clear dosage, we cannot advise on a safe starting amount. It is safer to choose a product with a fully disclosed ingredient list and dosage.

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