Lead in Protein Powders? Here’s Why Independent Testing Matters

Recent reports have raised concerns about heavy metal contamination - including lead - in a number of protein powders and shakes. Understandably, this has prompted many health-conscious consumers to question how their supplements are made and what safeguards are in place.

At Nuzest, we welcome this scrutiny. Transparency and rigorous quality control have been part of our philosophy since day one. You deserve to know exactly what you’re putting into your body — and that our products are made with safety, science and integrity in mind.

The Issue: Why It Matters

• Heavy metals such as lead, arsenic and cadmium can enter plant ingredients through soil, air and water.
• Not all manufacturers carry out thorough testing, which can lead to inconsistencies in product quality and safety across the industry.
• Independent reports have shown that some protein powders exceed accepted safety thresholds — particularly those made with low-grade raw materials or by unverified suppliers.

Our Approach to Quality and Testing 

We take a science-led, uncompromising approach to quality and safety.

• Nuzest works with trusted manufacturing partners and accredited independent laboratories that comply with ISO 17025 standards.
• Selected products are tested on a positive release basis — meaning they are only released for sale once they meet strict specifications.
• Our scheduled testing programme includes checks for:
  • Heavy metals (lead, arsenic, cadmium, mercury)
  • Microbiological contaminants
  • Allergens including gluten, dairy and soy
  • Pesticide residues (including glyphosate)

This ongoing verification process ensures that products tested meet international safety standards.

Our Ingredients and Sourcing

Quality starts at the source.

• We use golden European peas grown in clean soil with minimal exposure to environmental pollutants.
• Our protein is extracted using a clean, water-based process — free from solvents, chemicals or unnecessary fillers.

Proof Over Promises

We believe that trust is built through transparency, not assumptions. Our ingredient sourcing, testing protocols and manufacturing partnerships reflect our commitment to doing things properly — never cutting corners.

What’s on the label is what’s in your scoop: nothing more, nothing less.

“We make products to support your health, so quality is never optional.”