New Sun Fiber Cleanse

Our assessment

The evidence shows that New Sun Fiber Cleanse contains calcium as its active ingredient. Our assessment is that while calcium is essential for bone health, this product is marketed as a "fiber cleanse," which may be misleading given the primary ingredient is a mineral, not a fiber. You should be aware that the data for calcium is well-documented, but the specific formulation of this product requires careful consideration of your overall dietary intake [NIH ODS].

How it works

Calcium works in your body as a master regulator for two key functions. First, it supports bone mineralization by helping deposit minerals into your bone matrix, which is critical for maintaining density. Second, it facilitates neuromuscular relaxation, meaning it helps your muscles relax and your nerves send signals properly [NIH ODS].

Safety profile

Data not available for this specific product. However, for calcium supplements broadly, some research suggests that high intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in your 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]. The FDA has received a total of 592,059 adverse event reports for all dietary supplements, but specific report counts for this product are not available [FDA data]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Our recommendation is to approach New Sun Fiber Cleanse with caution. Since the primary ingredient is calcium and not fiber, this product may not deliver the digestive benefits you might expect from a "cleanse." You should check your total daily calcium intake from food and other supplements to avoid exceeding safe levels. Always take calcium supplements at least two hours apart from the medications listed above to prevent absorption issues [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