Low sperm morphology

We have been trying for 11 cycles and my husband was tested recently. His results came back as having 0 for sperm morphology where 4 and above is normal. I have been evaluated, as well, and I am ovulating regularly and structurally fine, but the doctor basically told us we need to seek out fertility treatments to get pregnant (IUI/IVF.) I started doing my own research and learned men with low morphology have high chances of achieving pregnancy naturally, it just takes longer. I also learned vitamin C, selenium, vitamin e, and lycopene can make a big difference in sperm morphology. Has anyone had any experience with this and overcome it naturally, or is fertility treatments our only option? I am 30 and my husband is 31, so we have some time to try naturally, I believe. Any advice or stories would be truly appreciated!!!