1. Too high an intake of estrogen-promoting foods (fenugreek, soy, soyproducts)
2. Plastic- bottled drink consumption (there were some news reports that during transport, certain types of plastic bottles were exposed to higher-than-room temprature, causing a molecular break-down of the plastic chemiclas that the human body would absorb and treat like the estrogens in 'the pill')
3. Like mentioned earlier, essential mineral deficiencies (zinc, calcium, magnesium, potassium
4. Vitamine deficiencies (vitamins a,c,e,d, b3 or niacin)
5. An inability to digest certain protiens causing amino acid deficiencies (amino acids are the building blocks for hormones. In testosterone's case, most notable are L-arginine, and L-carnitine.)
6. Other undiagnosed medical problems such as ednocrinological disorders (affect hormone production), diabetes, fibromialgia, auto-immune disorders, ect.