Market America NutriClean Advanced Fiber Powder

Our assessment

The evidence shows that calcium is a well-studied mineral for bone health, but the specific formulation in this product requires you to consider its potential interactions and risks. For general health, calcium supports bone density and nerve signaling [NIH ODS]. However, data on this specific product’s overall safety and efficacy beyond its calcium content is limited.

How it works

Think of calcium as a structural building block and a cellular messenger. It supports bone mineralization, helping your skeleton stay dense and strong, and it plays a key role in neuromuscular relaxation, allowing your muscles to relax and your nerves to transmit signals properly [NIH ODS]. This fiber powder, as a supplement, delivers this mineral in a convenient form.

Safety profile

FDA has received a total of 592,059 adverse event reports for products in this category, though specific report counts for this product are not available [FDA data]. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer [NIH ODS]. Excess calcium can cause 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

Start by assessing your total daily calcium intake from food and other supplements. If you take this product, be aware of the potential for constipation and nausea [NIH ODS]. If you take any prescription medications, particularly antibiotics or thyroid medication, separate the supplement by at least 2 hours to avoid absorption issues [NIH ODS]. For most adults, aim for a total of 1,000–1,200 mg of calcium per day from all sources, but do not exceed the tolerable upper intake level without medical guidance. Choose a product that fits your dietary fiber needs and consult your healthcare provider before starting, especially if you have a history of kidney stones or heart disease.

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