Description:

Moderate-potency vitamin D3 for daily bone, immune, and mood support*

Vitamin D3 1000 IU delivers cholecalciferol (vitamin D3) at 1,000 IU per capsule—a maintenance dose practitioners use when labs show mild insufficiency or daily repletion is appropriate.*

Lower-potency D3 fits clients titrating upward from multivitamin levels or maintaining optimal 25(OH)D within a target range.*

Product highlights

• 1,000 IU vitamin D3 (cholecalciferol) per capsule‡
• Bone and immune support‡
• Maintenance-potency dosing‡
• Hypoallergenic capsule‡

Who is this for

Vitamin D3 1000 IU suits adults who need moderate daily D3:*

• Individuals maintaining optimal vitamin D after repletion.*
• Clients whose multivitamin D is insufficient per labs.*
• Anyone supporting bone density and immune function.*
• Those stepping down from 5,000 IU under supervision.*
• Sensitive patients requiring Pure Encapsulations purity.*

The Pure Encapsulations Difference

Pure Encapsulations formulates for sensitive patients: hypoallergenic ingredients, verifiable science, and manufacturing in NSF-GMP-registered facilities.

Standalone D3 without K2; pair with Vitamin D3 & K2 if your clinician wants combined support.

Ingredients & supplement facts

Net wt 120 capsules · 120 servings (1 capsule per serving)

Suggested use

• Take 1 capsule daily, with a fat-containing meal, or as directed by your healthcare professional.
• Have 25(OH)D monitored when using daily vitamin D long term.
• Store in a cool, dry place with the lid tightly closed.
• If pregnant or lactating, consult your physician before use.

Science & Research

Vitamin D3 supports calcium absorption, musculoskeletal health, and immune cell regulation.

Frequently asked questions

How is this different from Vitamin D3 5000 IU?

This is a lower maintenance dose. Your clinician selects potency based on labs.

Do I need vitamin K with D3?

Some protocols add K2 for calcium routing; review with your practitioner.

Can I combine this with other supplements?

Many practitioner protocols combine complementary formulas; review totals and interactions with your clinician.

Is this suitable for vegetarians?

Review the label for capsule or softgel materials; most Pure Encapsulations formulas use vegetarian capsules unless noted as softgels with gelatin.

How long does one bottle last?

One capsule daily equals a 120-day supply per 120-capsule bottle.