This single-cell algae Chlorella pyrenoidosa is loaded with chlorophyll, a compound believed to cleanse the blood and keep the body from absorbing industrial toxins such as dioxins, says Crinnion. Polysaccharides in the algae’s cell wall also have strong immune-boosting properties. One study of 35 pregnant Japanese women found that those who took chlorella supplements had significantly lower dioxin levels in their breast milk. Dose: One scoop (2–3 grams) of chlorella or another chlorophyll-containing greens powder daily.

The Centers for Disease Control and Prevention’s 2009 biomonitoring study found 212 different chemicals—from toxic flame retardants to mercury—in the blood and urine of 7,200 Americans; many of the chemicals are linked to health conditions such as cancer, autoimmune disorders, neurological problems, and hormone disruption.