Diet-wise, avoid alcohol, coffee, tea, fried foods, excess animal fats and sugar. Increase your intake of water, fruit, vegetables, wholegrains and proteins from fish, chicken, soya and lean meat. Keep your digestive tract moving with a good intake of fibre from wholegrains, vegetables, beans and lentils. If you get constipated, soak a dessertspoon of organic golden flax seeds overnight in a glass of water and drink the mixture. I recommend a good colon and liver cleansing programme involving herbs and fibres. Supplementing 20mg of zinc and up to 5,000mcg of vitamin A can help, although you need to limit your vitamin A intake to 3,000mcg (or 10,000iu) if you' re pregnant.