NutraBio PRE V.2 Raw Unflavored

Our assessment

The evidence shows that NutraBio PRE V.2 Raw Unflavored contains calcium, which plays a role in bone health and muscle function. However, the available data on this specific product is limited. Our assessment is based on the calcium ingredient found in the product label. You should be aware that calcium supplementation requires careful consideration of your overall intake, as high levels can pose risks [NIH ODS].

How it works

Think of calcium as a foundation builder for your body. It supports bone mineralization—helping to maintain bone density and mineral deposition. It also plays a key role in neuromuscular relaxation, which means it helps your muscles relax and your nerves signal properly after you exercise [NIH ODS]. This mechanism is why calcium is often included in pre-workout formulas.

Safety profile

Data not available on specific side effects for this product. However, the FDA has received a total of 592,059 adverse event reports across all supplement categories. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. 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]. Calcium can also reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Before taking NutraBio PRE V.2 Raw Unflavored, you should review your total daily calcium intake from food and other supplements. If you take thyroid medication or antibiotics, space them at least two hours apart from this supplement to avoid absorption issues [NIH ODS]. Do not exceed recommended daily intakes. For personalized advice, consult with your healthcare provider. Data on the product's other ingredients is not available, so proceed with caution.

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