How to boost Testosterone levels without steroids (in order of importance):
Vitamin D: 5,000 to 50,000UI / day
Zinc: 30 - 200mg / day
Magnesium: 150-600mg / day
Even with steroids you still need to eat though.
I said to boost Testosterone assuming you are not deficient in other areas. You can make different supplementation protocols for different needs.
So how much Iron I need in my diet you think? I never really studied on Iron as a nutrient.
I'll keep it in mind.