Paleo Diet and Paleolithic Diet Questions & Answers

Question

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Seth Roberts has been collecting anecdotes from people taking vitamin D in the early morning and reporting improved sleep. He thinks the body might interpret it like sunlight.

Robb Wolf, on the other hand, finds that taking VD3 at night works best for him.

What factors determine whether one will get better results from taking VD3 in either the early morning or evening?

flag	asked Feb 16 2012 at 19:16 Eric S 5,606●12●44

I usually take mine throughout the day. I'm curious what others with will recommend. – JeezLoise Feb 16 2012 at 19:56

Seth Roberts · Answer 1 · 2012-02-17 00:03:15Z UTC

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I got the idea from Tara Grant. Her sleep instantly improved when she started taking Vitamin D3 first thing in the morning instead of mid-afternoon or early evening.

answered Feb 17 2012 at 0:03

Seth Roberts
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Suz - Paleo Oz · Answer 2 · 2012-02-16 20:14:42Z UTC

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Interesting - I can't see evolutionionary reasons for either. I'm always careful to take mine as close to solar noon as possible - and only on days I've not had adequate sun exposure

answered Feb 16 2012 at 20:14

Suz - Paleo Oz
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Robb make a good point about the evolutionary reason for night time supplementation - when you're out in the sun you're not making Vit D, you're making all of the precursors. You actually don' t make the D until you're sleeping and it's dark out. – miked Feb 16 2012 at 20:16

Interesting Miked, will have to read up on that – Suz - Paleo Oz Feb 16 2012 at 23:30

Milk · Answer 3 · 2012-02-16 20:02:44Z UTC

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I had trouble sleeping when I started Paleo and was taking my D3 at night before bed. Was nervous and couldn't seem to settle down. No problems since I went to morning, I have them with my fish oil right after breakfast.

answered Feb 16 2012 at 20:02

Milk
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miked · Answer 4 · 2012-02-16 20:15:58Z UTC

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After hearing Robb's podcast I switched my Vit D to night along with my Mg. MUCH better sleep. It's like I just pass out and don't remember the night at all and I wake up refreshed. There is probably no single right answer for everyone; and, it's so simple to test for yourself, that you should just do a week both ways and see what works best for you.

answered Feb 16 2012 at 20:15

miked
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	I too take both at night and have had no issues. I am taking magnesium supps so I am already getting very good sleep. I haven't noticed if it's any better or worse since adding in the D3. – Recurion Feb 16 2012 at 20:52
	Do you remember which episode this was in? – Tyler Mar 5 2012 at 17:19
	It was fairly recent. Last 5 or so. – miked Mar 5 2012 at 18:00

A at Grain Free Diet · Answer 5 · 2012-02-16 20:04:56Z UTC

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I prefer it at night. I find I sleep better. You probably have to test it out and see which one works better for you.

answered Feb 16 2012 at 20:04

A at Grain Free Diet
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The Quilt · Answer 6 · 2012-02-16 20:07:47Z UTC

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Knowing Robb's schedule and how busy he is I bet he is telling the truth about D3 better at night for him because his circadian rhythms are pretty screwed up secondary to his neolithic life.

answered Feb 16 2012 at 20:07

The Quilt
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Do you have any particular ideas on this topic though? – Austin Feb 17 2012 at 2:16

yep......my paleo Summit talk with Sean is all about this. – The Quilt Feb 17 2012 at 2:53

JRM · Answer 7 · 2012-02-16 22:17:43Z UTC

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I prefer taking it in the morning. I think it helps set my circadian rhythm.

answered Feb 16 2012 at 22:17

JRM
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Dave · Answer 8 · 2012-11-06 01:31:31Z UTC

I tried taking vitamin D the evening first, and I was pretty anxious and could not sleep even with only 2000 iu/day. I switched to morning in past 2 weeks and I have been sleeping like a baby ever since. I think my explanation for sleep disturbance is that the fillers in vitamin D supplements could be the culprit rather than the vitamin D itself. I have bumped my daily intake to 5000 this past week and it seems to be working.

Vitamin D: Morning (Seth Roberts) versus Night (Robb Wolf)

8 Answers