Herb Pharm Osha

Our assessment

The evidence shows that Osha root (Ligusticum porteri) is a traditional herb, but for the specific product you asked about — Herb Pharm Osha — we have very limited clinical data. Our assessment is that while Osha has a history of use in herbal medicine for respiratory support, there are no high-quality human studies from the provided data to confirm its effectiveness for any specific health condition. You should be aware that the supplement is not evaluated by the FDA for safety or efficacy.

How it works

Data not available. The provided information does not include a specific mechanism of action for Osha root. For context, the ingredient Calcium from the NIH ODS data works through Bone mineralization: it supports bone density and mineral deposition, and Neuromuscular relaxation: it supports muscle relaxation and nerve signaling [NIH ODS]. However, this mechanism applies to calcium, not to Osha root itself.

Safety profile

The FDA received a total of 592,059 adverse event reports across all dietary supplements, but specific report counts for Osha root or this exact brand are not available in the provided data [FDA data]. Regarding safety, the NIH ODS data on Calcium notes that high intakes can cause side effects including 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]. These side effects are associated with calcium, not Osha, and you should not assume they apply here.

Our recommendation

We recommend caution with this product. Without clinical studies on Osha root in the provided data, we cannot confidently advise its use for any specific purpose. If you choose to try it, start with a low dose to check for any adverse reaction, and always consult your healthcare provider first. For respiratory health, consider well-studied options like steam inhalation or honey, which have stronger evidence. Do not use Osha if you are pregnant, nursing, or have a history of liver or kidney conditions, as safety data is not available.

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