Product Label

Doctor's Best Probiotic 2 Billion With LactoSpore

Brand: Doctor's Best · Form: CAPSULE [E0159] On Market

Our assessment

The evidence shows that Doctor's Best Probiotic 2 Billion With LactoSpore is a product containing calcium, not a probiotic. Our assessment is that this supplement provides a very low dose of a single mineral. For bone health, the data confirms that calcium supports bone density and mineral deposition [NIH ODS]. However, you should be aware that this product delivers only 2 billion CFU of LactoSpore, which is a very small amount for a probiotic, and the primary active ingredient based on the label is calcium.

How it works

Think of calcium as a structural building block — it is essential for bone mineralization and supports neuromuscular relaxation and nerve signaling [NIH ODS]. LactoSpore is a spore-forming probiotic strain, but the provided data does not include specific studies or mechanisms for this strain from the allowed sources. The product's main function, based on the data, is to provide a small amount of calcium for bone and muscle health.

Safety profile

FDA received 592,059 total adverse event reports across all supplements, but specific side effect counts for this product are not available. For calcium, side effects from high intakes include constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, and abnormal heart rhythms [NIH ODS]. High calcium intakes might also increase the risk of heart disease and prostate cancer [NIH ODS]. You should be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Our recommendation is to consider this product primarily as a calcium supplement, not a probiotic, due to the very low 2 billion CFU count. For calcium, most adults need 1,000 to 1,200 mg daily from all sources, and this product's label does not specify the calcium dose [NIH ODS]. Data not available for the precise calcium amount in this specific product. For a probiotic, look for products with at least 10 billion CFU and multiple strains. We recommend discussing your specific health goals with a healthcare provider before starting this supplement.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandDoctor's Best
Serving Size
Contents60.0 Veggie Cap(s)
Market StatusOn 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

Original Label

View Full DSLD Label (PDF)

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