Is cocoa powder safe to use when baking for kids?

What's in cocoa powder

Cocoa powder is ground, defatted cacao. Because the fat is removed, everything else gets more concentrated, including lead and cadmium. Cadmium comes from the soil where cacao trees grow. Lead lands on the beans during outdoor drying, picked up from industrial dust and old gasoline residues in the ground.

A tablespoon of cocoa powder in a batch of brownies might not seem like much, but kids eat smaller portions and absorb metals more easily than adults.

What the research says

A 2026 study in Environ Res looked at how much lead and cadmium children actually take in from chocolate and cocoa products. The researchers found that regular consumption pushed some children close to or past daily safety limits, especially for cadmium.

There is no safe level of lead for children. Even small amounts add to the total burden from water, dust, and food. Cadmium builds up in the kidneys over time and can also affect brain development at low chronic levels.

Cocoa powder varies widely by brand. Some tested well below safety thresholds. Others were several times over.

How to reduce exposure

Choose cocoa brands that test for heavy metals and publish results. Dutch-processed (alkalized) cocoa tends to have different metal profiles than natural cocoa, so check test results for the specific type you buy. For kids' baking, you can also cut cocoa with carob powder to reduce the dose while keeping a chocolatey flavor.