At the Fancy Food Show, one of the exhibitors asked me what I did. I said I studied how food affected the brain. That’s interesting, she said. She proceeded to tell me that Vitamin D3 has really helped her.
When do you take it? I asked.
First thing in the morning, she said.
Why? I asked. Because she had tried taking it at bedtime and it hadn’t worked. So she switched to first thing in the morning and it worked well. It gave her energy and raised her mood. Her 28-year-old son had the same experience.
I told her I had seen the same pattern several times. The time of day really matters, I said. She said she had never thought of that — that what was true for her was true for other people. She had told lots of people about the benefits of Vitamin D3 but she hadn’t told them what time to take it.
I hope to interview this woman at length and get more details.
As far as I’m concerned, the totality of evidence, including this story, is overwhelmingly persuasive. Taking Vitamin D3 at the right time of day is crucial. Take it at the best time of day (first thing in the morning), it will have a powerful good effect. Take it at the worst time of day (evening), it will have a bad effect.
Why Vitamin D researchers missed this, and how long it will take them to stop dismissing “anecdotes” about it, are interesting questions.