Introduction

There's no evidence that you need to take vitamin C with collagen. There is a study by Keith Baar, who showed that 15 grams of gelatin, not collagen, but I suspect the collagen is exactly the same, 15 grams of gelatin but not 5 grams, the dose is important, with 50 milligrams of vitamin C taken before exercise improved collagen synthesis in the tendons. They included 50 milligrams of vitamin C because it's made for collagen synthesis, but they don't show that you needed the vitamin C. They just had the vitamin C in there. I don't know if it even matters in that context whether you need the vitamin C. I also have no reason to think that you need 50 milligrams instead of 10 or that 100 milligrams wouldn't work better because they didn't test the different doses. They tested the different doses of gelatin. I see no reason to think a high dose of collagen is any different in this respect.

This Q&A can also be found as part of a much longer episode, here:

Harnessing the Power of Nutrients

Recording and Transcript of Ask Me Anything About Nutrition | March 4, 2019

Watch now (157 min) | On March 4, you joined me in a live Zoom meeting to ask me anything about nutrition, and here’s the full recording! We talk about things like: How much spinach, broccoli, and kale is too much? Can frozen vegetables be trusted for their folate? Do cooked legumes lose folate when frozen…

4 years ago · Chris Masterjohn, PhD

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Harnessing the Power of Nutrients

076: How much vitamin C should I take with…

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