NaturesPlus Keto Living Collagen Natural Clean Flavor

Our assessment

The evidence shows that NaturesPlus Keto Living Collagen Natural Clean Flavor contains calcium as a key ingredient. Our assessment: calcium is essential for bone health, but you need to be careful with dosing to avoid risks. For a general audience, we recommend getting calcium primarily from food and using supplements only to fill any gaps in your diet [NIH ODS].

How it works

Think of calcium as a structural builder for your skeleton. It supports bone density and mineral deposition, which is critical for keeping your bones strong as you age. Calcium also plays a role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly after contraction [NIH ODS].

Safety profile

FDA received 592,059 total adverse event reports for this product category. Data not available on specific side effect reports for this product. However, calcium can cause side effects like constipation and nausea [NIH ODS]. Some research suggests that high calcium intakes might increase the risk of heart disease and prostate cancer. Very high levels of calcium in your blood and urine can lead to poor muscle tone, poor kidney function, low phosphate levels, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS].

Our recommendation

Start by assessing your total calcium intake from food and other supplements. Do not exceed the Tolerable Upper Intake Level without medical supervision. Be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Always check with your pharmacist or doctor before adding this supplement to your routine.

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