21ST Century Vitamin D-3 Tablet 50 mcg (2000 IU) 250/Bottle Pack of 1
Analysis updated July 2026 · How Scout scores
At a glance
Summary
This vitamin D3 supplement contains a beneficial form of vitamin D that is effective for bone health and immune support. However, the presence of several additives such as cellulose, croscarmellose sodium, and magnesium stearate, while common in supplements, slightly detracts from the overall purity of the formulation. The product is moderately processed, but it does not contain any harmful ingredients, making it a reasonably good choice for supplementation.
Key ingredients 7
Vitamin D3Good
Vitamin D3 is essential for calcium absorption and bone health. It is a high-quality active ingredient that supports immune function and overall health. This form of vitamin D is more effective in raising blood levels compared to other forms.
Benefits
Supports bone health, immune function, and may improve mood and reduce the risk of certain diseases.
CelluloseNeutral
Cellulose is a common filler and binder used in supplements. It is derived from plant sources and is generally considered safe. It does not provide nutritional benefits but helps in tablet formation.
See more about Cellulose →Croscarmellose SodiumNeutral
Croscarmellose Sodium is used as a disintegrant in tablets to help them dissolve properly. It is generally recognized as safe and effective for this purpose. It does not contribute any nutritional value.
See more about Croscarmellose Sodium →Gum AcaciaNeutral
Gum Acacia is a natural gum used as a stabilizer and thickener. It is derived from the sap of the acacia tree and is considered safe for consumption. It does not provide significant nutritional benefits.
Benefits
May aid in digestion and act as a prebiotic, supporting gut health.
Stearic AcidNeutral
Stearic Acid is a fatty acid used as a lubricant in tablet manufacturing. It is naturally found in animal and plant fats and is generally considered safe. It does not provide nutritional benefits but aids in the manufacturing process.
See more about Stearic Acid →Magnesium StearateNeutral
Magnesium Stearate is a common additive used as a flow agent in supplement manufacturing. It is considered safe in small amounts and helps ensure consistent tablet quality. It does not provide nutritional benefits.
See more about Magnesium Stearate →Silicon DioxideNeutral
Silicon Dioxide is used as an anti-caking agent to prevent clumping in supplements. It is naturally occurring and considered safe for consumption. It does not contribute any nutritional value.
See more about Silicon Dioxide →Processing
Processed Foods
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