It is a combination for hair loss and alopecia.
No specific restrictions on diet.
Next Steps
I would suggest you to not take such combinations of medicines, it wont benefit in long run. If you really want to opt for homoeopathic medications consult your nearby homoeopath who would prescribe proper medication based on a detailed case taking and based on homoeopathic principles. Such combination of medicines are not based on homoeopathic principles.