Progressive
Progressive Vitamin D3 Extra Strength 2500 IU (180 Tablets)
Extra strength vitamin D3 for immune and bone health support
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Why Choose This Product
IMMUNE SUPPORT
Helps maintain healthy immune system function during Canada's long winters when sun exposure is limited.
BONE STRENGTH
Improves your body's absorption of calcium and phosphorus for stronger bones and teeth.
EXTRA STRENGTH
2500 IU potency provides meaningful vitamin D levels in just one daily tablet.
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How It Works
How It Works
Your body converts vitamin D3 into its active hormone form, which regulates calcium absorption in your intestines and supports immune cell function. Unlike vitamin D2, the D3 form matches what your skin naturally produces from sunlight.
Who It's For
Adults living in Canada who get limited sun exposure, especially during fall and winter months. Office workers, shift workers, and anyone concerned about maintaining adequate vitamin D levels year-round.
Who It's Not For
Those already taking high-dose vitamin D supplements or who have been advised by their healthcare provider to avoid vitamin D supplementation.
About This Product
What It Does
Progressive Vitamin D3 Extra Strength delivers 2500 IU of vitamin D3 to support immune function and calcium absorption. Each tablet provides the cholecalciferol form your body recognizes and uses most effectively. The extra strength formula works for adults who need meaningful vitamin D support beyond basic maintenance levels.
Why It Works
- PROVEN POTENCY: 2500 IU provides substantial vitamin D3 levels in one daily tablet, unlike lower-dose formulas that require multiple pills.
- SUPERIOR ABSORPTION: Uses vitamin D3 (cholecalciferol) rather than D2, which research shows is more effective at raising blood vitamin D levels.
- CALCIUM PARTNERSHIP: Enhances your body's ability to absorb calcium and phosphorus from food for stronger bones and teeth.
What's Inside
Clean tablet formula with gluten-free ingredients and easy-swallow design. Contains 62.5 mcg (2500 IU) vitamin D3 per tablet with simple non-medicinal ingredients including cellulose and dicalcium phosphate.
Why we carry it: Progressive combines reliable third-party testing with honest pricing that makes daily vitamin D support accessible for Canadian families.
How to Take
Full Ingredients
Medicinal Ingredients
| Vitamin D3 | 62.5 mcg/2500 IU |
Non-Medicinal Ingredients
| Cellulose, Dicalcium Phosphate, Modified Cellulose Gum, Magnesium Stearate. |
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Research & Science
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