Examine.com is an independent website that documents clinical research on different supplements. I’ve looked through and managed to find 4 cheap natural supplements that are all described as having a “notable (moderate) effect on depression” and are supported by “high to very high level of clinical evidence”. The 4 supplements are:
- Curcumin (in Turmeric only £7.99)
- zinc only £7.99
- Creatine only £7.33
- Omega 3 (fish oil) only £5.99
All four are easily available and they don’t interact with each other so you can use all four of them daily if you wish. All four are available cheaply online.