Lose That Excess Weight
Overweight, middle-aged men with prediabetes are also likely to have low testosterone levels
Get Enough Zinc
Eating foods that are rich in this essential nutrient may help. Oysters have a lot of zinc; red meat and poultry do too. Other food sources of zinc include:
beans
nuts
crab
lobster
whole grains
Adult males should aim to get 11 mg of zinc each day.