Vitamin ReviewsVitamin DSwitched brands, vitamin D3 levels rose from 19 to 50+ in 6 months. Discontinued due to 3x price hike.

Switched brands, vitamin D3 levels rose from 19 to 50+ in 6 months. Discontinued due to 3x price hike.

2025-08-31 Vitamin Reviews Categroy:Vitamin D Views:57


Effective D3 supplement boosted levels from 19 to 50+ but tripled in price, prompting brand switch.


This review is from Amazon.com for product:


Puritan's Pride Vitamin D3 10,000 IU, Twin Pack 200 Total Count, 100 Count (Pack of 2)


Vitamin D3 Boost: Blood-Tested Results & Price Alert


I switched to these after using an inferior D3 and finally got better results tracked by blood work every 4 months. Initially I was deficient in Vit D-3 (19) so I started taking a different brand and the results were pathetic at best. After switching to this brand my score increased from 19 to 50+ in just 6 months. I’ve always known vitamin quality can vary so the only way to track is blood work and I now have my whole family on this brand.


Update:2/15/25 HUGE PRICE INCREASE


($7 to $22)


Disappointing to see the price increase 3x since my last order 6 months ago.


Price/pill in now .11 which is the same as the higher quality D-3 with K2.


I’ll now switch brands.


Vitamin Basics & Tips


Vitamin D3 plays a critical role in bone health, immune function, and mood regulation. Unlike vitamin D2, D3 (cholecalciferol) is more effective at raising blood levels of vitamin D, especially when paired with fat for absorption. Regular blood tests (every 4-6 months) are recommended to monitor levels, as deficiencies (below 30 ng/mL) can lead to fatigue, weakened immunity, and bone pain. Supplements vary in quality due to differences in sourcing, bioavailability, and additives like vitamin K2, which enhances calcium absorption and reduces arterial calcification risks.


Price fluctuations in supplements often reflect changes in raw material costs, manufacturing standards, or market demand. While higher-priced brands may offer better purity or synergistic formulas (e.g., D3 + K2), cost-effectiveness matters for long-term use. Always compare price per pill and third-party testing certifications. Lifestyle adjustments, such as sunlight exposure (10-30 minutes daily) and dietary sources like fatty fish or fortified foods, can complement supplementation but may not suffice for severely deficient individuals.



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Tags: vitamin d3 supplements blood work monitoring price increase brand comparison k2 synergy


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