The Benefits and Risks of Consuming Brewed Tea: Beware of Toxic Element Contamination

Table 1

Healthy minerals found in teas in this study mg/L.

Calcium		Daily minimum requirement 800 mg
3-4 minute steeping	1.2–8.6
15–17 minute steeping	1.8–12.8
Magnesium		Daily requirement; 250–300 mg
3-4 minute steeping	2.6–14.4
15–17 minute steeping	3.4–16.8
Potassium		Daily requirements; 4500–5000 mg
3-4 minute steeping	55–201
15–17 minute steeping	94–216
Phosphorus		Daily requirement of 1250 mg
3-4 minute steeping	3.1–17.9
15–17 minute steeping	4.2–20.3