To Increase Testosterone Levels Naturally*

Zinc – 50mg to 100mg per day
Fenugreek – 1 to 2g per day

Optional Extras:

Magnesium
D-Aspartic Acid – 4-6g per day (take for 10 days, then take 10 days off)
Tongkat Ali – If you can get the genuine stuff

To Increase Male Fertility

1g of Acetyl-L-Carnitine

Make sure it’s the Acetyl form. Test with a 500mg tablet – it can upset your stomach if you are prone to IBS extra

DIY Viagra

Add L-Arginine and/or Yohimbine

*At your own risk. Be careful with Yohimbine which can increase blood pressure. More info here – https://examine.com/supplements/yohimbine/

Velvet Bean AKA Mucuna Pruriens may also be effective. It should not be taken continuously due to the L-Dopa content.
More info here – https://examine.com/supplements/mucuna-pruriens/