Although it accounts for only 1.2% of all cancers in males, cancer of the testis accounts for about 11%-13% of all cancer deaths of men between the ages of 15-35. Testicular cancer has two peaks according to age. The first peak occurs before the age of 45 and accounts for about 90% of cases of testicular cancer.
For acne, doses of 40-300 milligrams of zinc sulfate two or three times daily with or without food have been taken by mouth for 4-12 weeks. 30-200 milligrams of zinc gluconate prior to a meal daily for 2-3 months has also been studied.
This means that, for an adult, taking more than 40 milligrams of zinc daily is too much. For children between 9 and 13 years of age, more than 23 milligrams of zinc is too much. Adolescents between 14 and 18 years should not consume more than 34 milligrams daily.