Renal Diet

Dark chocolate, 70-85% cacao: potassium, phosphorus and sodium

One serving of dark chocolate, 70-85% cacao (1 oz, 28.35 g) has about 203 mg potassium, 87 mg phosphorus, 6 mg sodium and 2.2 g protein, according to USDA FoodData Central (FDC id 170273).

Nutrients per serving and per 100 g

Dark chocolate, 70-85% cacao: USDA valuesServing: 1 oz = 28.35 g. Per serving = per 100 g x grams / 100, rounded for display.
Nutrient Per serving (28.35 g) Per 100 g
Potassium (mg) 203 715
Phosphorus (mg) 87 308
Sodium (mg) 6 20
Protein (g) 2.2 7.8
Energy (kcal) 170 598

Source

USDA description
Chocolate, dark, 70-85% cacao solids
USDA FDC id
170273 (opens the USDA record)
Dataset
USDA FoodData Central - SR Legacy (CSV), release 2018-04
USDA category
Sweets
License
Public domain (CC0 1.0)

How this compares with published guidance

200 mg or more At 203 mg potassium per serving, this is at or above the 200 mg line that the National Kidney Foundation (Potassium in Your CKD Diet, updated May 5, 2023) generally calls high potassium per serving.

The 200 mg line applies to a serving, and the serving here is the USDA household portion listed above, which may not match the serving size used on other lists. NKF gives no daily potassium target. Your own limit comes from your care team.

Phosphorus. NKF (Phosphorus and Your CKD Diet) gives no per-serving cutoff, so no label is applied to 87 mg. See where it sits on the phosphorus ranking.

Processed or packaged item. Products of this kind can differ from this USDA reference value, and phosphorus additives may add phosphorus that a generic value does not show. NKF says additive phosphorus is completely absorbed and advises checking ingredient lists for additives with "phos" in the name. Check the label of the product you buy.

USDA portions

USDA household portions for Dark chocolate, 70-85% cacaoNutrients computed from the same per 100 g values. The first portion is the standard serving used elsewhere on this site.
Portion Grams Potassium (mg) Phosphorus (mg) Sodium (mg)
1 oz standard serving 28.35 203876
1 bar 101 72231120

Similar foods in snacks and prepared foods

Closest potassium per serving within the same food group. Different serving sizes, so compare the grams too.

Track your own numbers against your own limits

Renal Diet adds up potassium, phosphorus, sodium, protein and fluid from an offline USDA food database, with the source on every value. No account, no scanner. You enter the limits your care team gave you, and "Can I eat this?" shows a traffic light against what is left today. A PDF report is there for your dietitian. Free to start; some features may need an optional premium subscription.

Values are USDA reference values for a standard serving. Your limits are set by your nephrologist or dietitian. Processed foods and phosphorus additives may differ. This is not medical advice.