A good topic that deserves more attention. I am currently cutting out all sups that supposedly have 5AR inhibition properties. This is a list I have found so far on various forums, but further research is certainly needed for clarification:
Use cautiously in patients with hormone disorders or those using agents that affect hormones, particularly 5-alpha-reductase inhibitors, as astaxanthin may inhibit 5-alpha-reductase, thereby inhibiting the conversion of testosterone to dihydrotestosterone (DHT). Theoretically, adverse effects related to 5-alpha-reductase inhibitors, such as decreased libido, gynecomastia, decreased semen quantity during ejaculation, impotence, increased skin pigmentation, hair growth, weight gain, and depressed mood, may occur.
- Fish Oils
- Coconut Oil: http://www.hairloss-research.org/UpdateCoconutOil8-09.html
- Turmeric/Cucurmin
- Lycopene
- Zinc
- Green Tea
- Reishi
- Astragalus
- Milk Thistle
- Hemp Seeds/Hemp Oil/Chia Seeds
- Beta Sitosterols, compound in saw palmetto, other rich food sources: avocado’s, pistachios, almonds, walnuts, hazelnuts, macadamia, pecans, coriander (cilantro), pomegrantates, dark chocolate, eggs, butter, amaranth, oranges, beetroot, brussels sprouts, aswell as sesame, corn, canola and olive oils.