Swanson Premium Brand Garlic & Parsley

Our assessment

The evidence shows that Swanson Premium Brand Garlic & Parsley is a combination supplement, but the data provided only includes information for calcium, not garlic or parsley. Our assessment is based on the calcium content listed in the data. For the specific benefits of garlic and parsley, data is not available from the provided sources.

How it works

If this product contains calcium, think of it as a structural supporter for your bones. It works through bone mineralization, helping to support bone density and mineral deposition. It also plays a role in neuromuscular relaxation, supporting muscle relaxation and nerve signaling [NIH ODS].

Safety profile

Based on the data, the FDA has received 592,059 total adverse event reports across all supplements. For calcium specifically, some research suggests that high intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

We recommend you check the label for the exact amount of calcium per serving. If you are taking any medications, especially those listed, you should take this supplement at a different time of day to avoid absorption issues. For the specific benefits of garlic and parsley, data is not available from the provided sources, so we cannot make a claim about their effectiveness. Consult your healthcare provider before starting this supplement, especially if you have a history of kidney stones or heart conditions [NIH ODS].

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