noddyholder - well I have been gluten free and lactose free for about 6 weeks and have lost weight (about 0.5 kilo per week) without even trying.
I have found I am not constantly hungry, especially for bread and biscuits, any more.
My diet looks like this.
Breakfast: Gluten free muesli plus Rice/Soya milk plus coffee. Ocassionally, I have gluten free muffin (Sainbury) with a couple of poached eggs on top. Sometimes I have Nairns oat cakes, honey, grapes, dried fruit and nuts. A friend showed me some lactose free yoghurt and lactose free milk from waitrose so I might add that to the mix.
Lunch: This is a totally normal meal for me but no wheat or gluten containing cereal such as pasta or cream/milk for me. Salads are of course very good with a baked potato and some filling like tuna. Puddings are the hardest but I have Swedish Glace ice cream (vanilla is yum) or gluten free cake or just a few gluten free sweet biscuits with a coffee.
Tea/Dinner: Some Japanese rice crackers perhaps, cooked meats, smoked salmon, pickles (care needed for thickeners), fruit, gluten free scone and jam. I hardly ever eat dinner anyway so if I wanted more I could just eat a normal meal as per lunchtime.
Peppermint tea, smoothies, juices and water for drinks. I try amd get Rice Milk and Soya Milk with calcium in to make sure I do not miss out on what I would get from milk.
The trick is to have as many normal foods as possible rather than buying lots of gluten free things. That way life is not too weird or expensive.
I have to say I feel fabulous, huge amounts of energy, and people say I look great too, skin is clear and I have colour not pallor. Bowels are much better too.
I tried a Tiramisu the other day out of politeness at a friend's house and felt dire afterwards.
I have bought the Wheat & Gluten Free Cookbook (by Jody Vassallo) which I am going to try some snack and desert recipes from for variety.
[Oat cakes: the evidence is not definitive but most people believe that oats are OK for coeliacs].
If you are going to have a test - do not do the diet before the test as cass66 says.
I started my diet immediatley after the biopsy test while I was waiting for the results. I tested negative but as I still feel the benefit of the diet so I told my consultant who said just keep on with it if it makes you feel better. So I did.