Hi ejmcdon! Thanks for stopping by to say hello.

It's calcium and magnesium that work with each other, potassium works well on its own. If you're eating certain foods, (list below) you may not even have to take potassium. I've never taken it or suffered from not taking it.

Here's my list of super foods because they contain high amounts of calcium, magnesium or potassium. And they're all great low-carb choices.

If you had a spinach salad with salmon and avocado, you would be getting a whopping amount of potassium, calcium and magnesium. A 99 mg pill pales in comparison!

For the record, if you're on cardiac medication, you should only take potassium supplements under the supervision of your doctor.

Raw Kale, 1 cup chopped
Calcium 90.450 mg
Magnesium 22.780 mg
Potassium 299.490 mg

Raw broccoli, 1 cup chopped
Calcium 42.240 mg
Magnesium 22.000 mg
Potassium 286.000 mg

1 cup cooked Chinese Broccoli
Calcium 88.000 mg
Magnesium 15.840 mg
Potassium 229.680 mg

1/2 cup regular tofu
Calcium 434.000 mg
Magnesium 37.200 mg
Potassium 150.040 mg

1 cup plain, whole milk yogurt
Calcium 295.715 mg
Magnesium 28.371 mg
Potassium 378.770 mg

1 can sockeye salmon
Calcium 881.910 mg
Magnesium 107.010 mg
Potassium 1391.130 mg

1 can waterpacked white tuna
Calcium 24.080 mg
Magnesium 56.760 mg
Potassium 407.640 mg

1 cup raw spinach
Calcium 29.700 mg
Magnesium 23.700 mg
Potassium 167.400 mg

1 Haas avocado
Calcium 19.030 mg
Magnesium 70.930 mg
Potassium 1096.820 mg

1 oz whole roasted pumpkin seeds
Calcium 12.191 mg
Magnesium 151.389 mg
Potassium 228.501 mg

1 oz. whole roasted sunflower seeds
Calcium 19.845 mg
Magnesium 36.572 mg
Potassium 240.975 mg

1 raw, Eastern oyster
Calcium 4.000 mg
Magnesium 11.000 mg
Potassium 84.000 mg

1 oz Brazil nuts
Calcium 49.896 mg
Magnesium 63.788 mg
Potassium 170.100 mg

1 oz almonds
Calcium 82.499 mg
Magnesium 77.679 mg
Potassium 198.167 mg

Flax seeds, 1 Tbsp.
Calcium 23.880 mg
Magnesium 43.440 mg
Potassium 81.720 mg