LIDL
1. Frankfurters (by Roach Foods): 0.63g carbs/frankfurter ; approx. £2/350g: Freezeable. Tasty, easy to grill, fry, slice
2. Fresh meats/chicken/fish/eggs/cheese at very reasonable prices

HOLLAND & BARRETT (H&B)
Pure SOYA PROTEIN Isolate Powder; 0.5g carbs/100g ; approx £5/908g tin;
Tastes awful on its own but ideal to mix with other foods at almost negligible carb count.

H&B
WHEY PROTEIN; 6.7g/100g; approx 1.5g/serving in the scoop provided; £22/908g tin except at their many sale periods, when it is often at half price.
Three flavours: Chocolate (5*); Vanilla (4*) and Strawberry (best**); Tastes great, filling but does contain sweetener

H&B
NUTS of all kinds (except Macademia Nuts) at very reasonable prices
VITAMIN and MINERAL supplements of all kinds

SAINSBURYS
Macademia Nuts; 4.7g carbs/100g; approx £1.40; Quite pricey £14/kg
Fresh Meats, Chicken, Fish, Cheese, Eggs at reasonable prices

VB FOODS (Wembley and Kingsbury)
Linseeds, NUTS at approx half of H&B prices but no nutritional information on packs.
Spices, herbs and all things Indian.

Hope this is helpful to any visitors.

Take Care.