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When I make salads, I tend to try to incorporate a lot of purple foods too as they are known for their cancer busting properties. Shredded purple cabbage and grated beetroot are excellent and red onions too. All cruciferous veg such as Broccoli, cauli, kale, sprouts are superb sources of cancer fighting nutrients and if your husband can stomach raw chillies, remember the hotter the better and you could finely dice them and add them to your salad dressings. Cooking tomatoes will help concentrate levels of lycopene and studies have shown that when this is combined with Olive oil, the cancer-busting ability is strengthened.