I'm wondering what accounts for a 4 to 1 difference in labeled sodium per calorie in two salt-free tomato products.
Market Basket (Northeast grocery chain) select crushed tomatoes in heavy puree, no salt added: 1/4 cup, 61g serving: 20 calories, 15 mg sodium = .75 mg sodium/calorie. Ingredients: tomatoes, tomato puree, citric acid. The label says "not a sodium free food."
Pomi chopped tomatoes: 1/2 cup, 125g serving: 28 calories, 5 mg sodium = .18 mg sodium/calorie. Ingredients: tomatoes.
The puree would account for the higher calorie density (149 vs 73 calories/lb) of the Market Basket product.
