Klean Athlete Klean Collagen+C Natural Berry Flavor

Our assessment

The evidence shows that Klean Athlete Klean Collagen+C provides calcium, a mineral essential for bone health and muscle function. Based on the data, this product can be a useful tool for supporting your skeletal system, but you need to be mindful of total calcium intake from all sources. The data does not provide specific dosage information for this product, so we cannot make a precise daily recommendation from the label alone.

How it works

Think of calcium as the structural building block for your bones. It supports bone mineralization and density by depositing into your skeleton [NIH ODS]. Additionally, calcium plays a role in neuromuscular relaxation, helping your muscles relax and your nerves send signals properly [NIH ODS].

Safety profile

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

Our recommendation

If you choose to use this collagen product, be aware of your total calcium intake from food and other supplements to avoid exceeding safe levels. Given the potential risks with high calcium intake, consult your healthcare provider before starting this supplement, especially if you take any of the listed medications or have a history of kidney issues [NIH ODS]. Data on the specific collagen and vitamin C content for this product is not available in the provided data.

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