Vitamin D

Found InFish, milk, and fortified dairy products
FormCholecalciferol
SourceLichens
SupplierThe GHT Companies / ESB Developments Ltd
Final Location of ManufacturingNottingham, UK
FunctionNutrient
Get to Know Our Supplier
Vitamin D3

Benefits

bone

Bone Health*

immune

Immune Support*

Ritual uses Vitashine™, a Certified Vegan D3 ingredient made from sustainably-sourced lichen.

Vitamin D3 assists with calcium absorption.*

+Calcium

Vitamin D3

Evidence-Based or Bust

We use nutrients backed by a significant body of research that is growing every day. Of the thousands of unaffiliated studies our in-house scientists sorted through to guide our choices, the titles below are some relevant MVPs.

Study

Foods, fortificants, and supplements: where do Americans get their nutrients? - 2011

Nutrition Impact LLC

Study

Randomized comparison of the effects of the vitamin D3 adequate intake versus 100 mcg (4000 IU) per day on biochemical responses and the wellbeing of patients - 2004

University of Toronto

Study

Effectiveness and safety of vitamin D in relation to bone health - 2007

University of Ottawa

Study

Does high dose vitamin D supplementation enhance cognition?: A randomized trial in healthy adults - 2017

University of Northern British Columbia

Study

Unexpected actions of vitamin D: new perspectives on the regulation of innate and adaptive immunity - 2008

University of California at Los Angeles

Study

The impact of 1-year vitamin D supplementation on vitamin D status in athletes: a dose–response study - 2016

Wageningen University

Study

Effects of vitamin D2-fortified bread v. supplementation with vitamin D2 or D3 on serum 25-hydroxyvitamin D metabolites: an 8-week randomised-controlled trial in young adult Finnish women - 2016

University of Helsinki

There are 50,918 studies on Vitamin D and counting

Substantiation is a living, breathing thing. We are constantly reviewing new research. Have a study you think we should take a look at? Send it our way: [email protected]

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