I've categorised my shopping list into 3 sections and some healthy snacks:
Protein:
1.Peppered Smoked Mackerel
2.Salmon Fillets
3.Smoked Cod Fillets
4.Smoked Salmon
5.King Prawns (very low cals and high in protein)
6.Chicken Breast
7.Chick Peas (high in protein and fibre as well as several key vitamins and minerals)
8.Green Lentils (not only high in protein, but also in potassium and fiber)
9.Natural Yoghurt
10.Free Range Eggs
11.Cottage Cheese
12.Feta Cheese
Carbs:
1.Brown Rice
2.Whole Wheat Pasta
3.Quinoa (gluten free, high in magnesium, iron, potassium, some beneficial antioxidants)
4.Corn on the Cob (I consider this as carbs!)
Veg and fruit:
1.Lettuce
2.Cauliflower
3.Asparagus
4.Spinach
5.Watercress, Spinach and Rocket Salad
6.Mint (great in salads)
7.Flat Leaf Parsley
8.Courgette
9.Bell Peppers
10.Radish (high in Potassium)
11.Mushrooms (low in carbs, high in potassium and minerals
12.Vine Tomatoes
13.Beetroot (high in Vit C and Potassium)
14.Apples
15.Strawberries
16.Blueberries
17.Raspberries
18.Lemons
19.Avocado
Snacks:
1. Mixed nuts (healthy fats)
2. Rice cakes (great source of carbohydrate)
3. Low Cal Popcorn (carbohydrate)
4. Mixed Dried Fruit (carbohydrate)
5. Nature Valley Protein Peanut Bars (Protein & carbohydrate)