Blue cheese and fermented cheese
Fermented cheeses are excellent for testosterone production, since they contain the probiotics (health-promoting live and active cultures) and enzymes associated with increased testosterone production. The bacteria are incredibly good for gut health.
Penicillium roqueforti and Penicillium glaucum, which are the blue moulds, cannot produce toxins in cheese. The conditions within the cheese (acidity, salinity, moisture etc) result in the mould becoming edible. Blue moulds have a unique effect on cheese. They accelerate the breakdown of proteins and fats, this causes the cheese to take on a creamy texture and gives it a sharp and strong flavour. They also tend to be quite salty which is a good thing.
Blue cheese contains large amounts of testosterone boosting saturated fat and certain testosterone boosting fat-soluble vitamins, like vitamin K2. These high quality cheeses are typically made from quality pastured cows. Blue cheese contains 130μg of vitamin K2 per 100g (100% of RDA). Blue cheese can also provide a number of essential vitamins and minerals, including vitamin A, vitamin D, potassium, sodium, calcium and zinc.