Swanson Ultra Potassium Citrate 99 mg
Brand: Swanson Ultra · Form: CAPSULE [E0159]
Our assessment
The evidence shows that Swanson Ultra Potassium Citrate 99 mg contains a specific form of potassium. However, based on the data provided, we cannot assess this product directly because the ingredient information for this specific supplement is not available in the data. The data instead covers the ingredient Calcium [NIH ODS]. For a potassium citrate supplement, the general principle is that potassium is essential for nerve signaling and muscle function, but specific data for this product is missing.
How it works
Think of the mineral calcium, which is discussed in the data, as a master regulator for your body. It supports bone mineralization and density, and it plays a key role in neuromuscular relaxation, meaning it helps your muscles relax and your nerves send signals properly [NIH ODS]. For potassium specifically, it works in tandem with sodium to control electrical impulses in the heart and muscles, though exact mechanism data for this product is not available.
Safety profile
FDA has received a total of 592,059 adverse event reports across all dietary supplements [FDA data]. Based on data for the mineral calcium, side effects from high levels include constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. For potassium citrate specifically, side effect data is not available in the provided information. High calcium intakes might also increase the risk of heart disease and prostate cancer [NIH ODS].
Our recommendation
Our recommendation is to proceed with caution. Since the provided data does not contain specific information about Swanson Ultra Potassium Citrate 99 mg, you should consult your pharmacist or doctor before starting this supplement. If you are taking medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, or phenytoin, be aware that calcium supplements can reduce their absorption [NIH ODS]. For potassium citrate, data not available for specific interactions or dosing.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Swanson Ultra |
|---|---|
| Serving Size | |
| Contents | 120.0 Capsule(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide