THE CART-INAL RULE 1. Buy plain basic food. Food as Mother Nature produced it, usually has more nutrients and fibre, and less fat, sugar and salt.
Skim milk is best.
Almost pure fat. Choose well trimmed cuts of meat that are moderately marbled not heavily streaked with fat. Trim again when you get home. Chicken and turkey can be low fat winners when roasted without the skin. Bypass the sliced bologna, salami, bacon, sausage and weiners.