Douglas Laboratories Vitamin D (5,000 I.U.) | Vitamin D3 Supplement to Support Immune Health, Calcium Levels, and Bones* | 100 Tablets Review
Our verdict
A no-frills, high-potency vitamin D3 tablet from a practitioner-oriented brand, sized for a roughly three-month supply at one tablet a day.
Check price on AmazonBest for
Shoppers who want a straightforward, single-ingredient 5,000 IU tablet without added flavors or a large capsule count to manage.
Skip if
You want a lower daily dose, a softgel or liquid format, or a bottle that lasts longer than about 100 days.
- Form Tablet
- Count 100 Count
- Flavor Unflavored
- Type Vitamin-D
- Diet Keto
- Benefits Immune Support
- Priced 17% above the category median ($14.49 across 136 tracked models)
Pros
- 5,000 IU per tablet keeps the serving size simple, one a day
- Keto-friendly formulation for shoppers tracking that diet style
- Unflavored tablet with no added sugars or coatings to speak of
- Consistently high 4.7 average rating
Cons
- Review count is modest next to bigger-name competitors
- 100 count bottle means more frequent reordering than 250 or 360 count options
- Tablet form may be less appealing to people who prefer softgels or liquids
Our scorecard
-
Owner rating4.7/5
4.7 average across 1,200 owner ratings
-
Popularity1.0/5
1,200 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
['Douglas Laboratories markets this as a 5,000 IU vitamin D supplement in tablet form, sold in a 100 count bottle. At one tablet per serving, that works out to roughly a three-month supply for someone taking it daily.', 'The label lists the formula as keto-friendly and unflavored, and the maker frames it around immune health, calcium levels, and bone support. Douglas Laboratories has historically sold through practitioners, so the packaging leans plain and clinical rather than consumer-flashy.', 'With 1,200 reviews and a 4.7 average rating, feedback is limited compared to the mass-market vitamin D brands on this list, but the scores that exist are consistently positive.']
Specifications
| Form | Tablet |
|---|---|
| Count | 100 Count |
| Flavor | Unflavored |
| Type | Vitamin-D |
| Diet | Keto |
| Benefits | Immune Support |
| Allergens | Abalone Free |
Performance notes
As a tablet, this format tends to be firmer and less prone to the oily residue some people notice with softgels, though it also means no oil carrier is built in. The 100 count size at one a day lines up with about a 14 week supply, shorter than several other options in this category that ship 240 to 360 count bottles.
What buyers say
At 1,200 reviews and a 4.7 rating, the feedback pool is smaller than category leaders but skews positive, suggesting satisfied repeat buyers rather than a large, mixed audience.
Similar home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters to consider
Frequently asked questions
How long does one bottle last?
At the labeled one tablet per day serving, 100 tablets works out to a little over three months. Always follow the label directions rather than assuming a different dose.
Is this suitable for a keto diet?
The maker labels it as keto-friendly, which typically means it is free of the sugars or fillers that would conflict with that eating style. Check the label yourself if you follow a strict version of the diet.
Does it contain any flavoring?
No, it is listed as unflavored, which fits its plain tablet format. If you are sensitive to added flavors in supplements, that is worth knowing going in.