Calories in Parkay Butter

WeightWatchers Points are estimated by carbohydrates, fats, protein and fiber in product. They are not an affirmation of better quality or nutritional value of the product or its manufacturer. Only way to count for dieters. Less points are better.
Read more at Weight watchers diet review

Salt (NaCl) is not excactly sodium (Na).
It is not right to use these terms as synonyms.
The FDA recommended limit of sodium is 2,300 mg per day (or even less - about 1500 mg while one is on low sodium diets).
This is much less than the weight of salt.
(5,750 mg per day or 3,750 mg for low sodium diet) and not so convenient to calculate.
Know how much sodium is in your salt - without a calculator:
1/4 tsp salt = 600 mg sodium
1/2 tsp salt = 1200 mg sodium
3/4 tsp salt = 1800 mg sodium
1 tsp salt = 2300 mg sodium

Phosphoric acid is used as an additive to acidify foods and beverages such as various colas and jams.
It provides them a tangy or sour taste and then, to mask and balance the acidity they add a huge amounts of sweeteners.
Remember! It’s a corrosive acid and can form toxic fumes when it comes into contact with alcohols, ketones and other organic compounds.
Phosphoric acid has been linked to lower bone density, dental erosion, risk of developing kidney disease.
BTW: The clear sodas that contained citric acid didn’t have the same risk.

Sources:
American Journal of Clinical Nutrition: Colas, But Not Other Carbonated Beverages, Are Associated With Low Bone Mineral Density in Older Women: The Framingham Osteoporosis Study
American Journal of Clinical Nutrition: Carbonated Beverages and Urinary Calcium Excretion
Epidemiology: Carbonated Beverages and Chronic Kidney Disease
General Dentistry: Commercial Soft Drinks: pH and in Vitro Dissolution Of Enamel
Archives of Pediatric and Adolescent Medicine: Teenaged Girls, Carbonated Beverage Consumption, and Bone Fractures
Phosphoric acid has been linked to lower bone density in some epidemiological studies, including a discussion in the American Journal of Clinical Nutrition.