if your body language is in order.

What do you have in mind?

p/s/a: Going up to a girl pretty much anywhere in public and saying something like "I thought you looked cute and wanted to meet you" actually works if your body language is in order.

Is this true? Aside from the fact that getting "your body language in order" is easier said than done, it would be pretty easy to do an experiment to test this hypothesis. You could approach one hundred women in this way and see how many responses you got of each of the following nature: active hostility, passive "please go away" politeness, friendliness, perceived actual sexual desire. You could even get, say, five different men from different quintiles of physical attractiveness to see how it varies.

I kind of want to do it myself, but to be honest I'm probably too much of a wimp.

If this seems too scary, going on Chatroulette or Omegle and being vaguely interesting also works, and I know people who have gotten married from meeting this way.

The one time I went on Omegle everyone kept next-ing me almost instantly, and maybe one out of five times they next-ed me as soon as I said "hello" or the equivalent. I can't think of any characteristic I have that would make me exceptionally next-able, so I concluded that Omegle was a really frustrating waste of time. I'm confused as to why other people concluded otherwise.

Continuing: Other substances whose deficiency is common and seem to have large effects for a subset of the population. By that I mean they see immediate relief after supplementing.

• Magnesium: issues with muscle tension, cramps, poor sleep quality.
• Potassium: immediate strong nootropic effects for some people. Coconut water is the most popular method of fixing this.
• B12: absorption seems to be poor enough that deficiency is common even among people who eat b12 rich foods. Especially important for older folks as absorption declines with age. Responsible for many things people chalk up to age: aches, nervous tension, poor sleep, anxiety, depression, lethargy etc.
• Saturated fat: immediate strong nootropic effects for some people.

if your body language is in order

This reads unfortunately like an excuse ahead of time. "Oh, your body language must not have been in order."

(Although I do agree that if you're not socially offensive, just telling people when you fancy them does in fact work quite well and I wish I'd realised that ten years earlier than I had.)

Word to the wise: If you substitute "hot" for "cute" you may get unanticipated negative results. I would not interpret "hot" in anywhere near the same way as "cute". Here's how that would translate for me:

"I thought you looked cute..." = "I am likely to be interested in things like emotional intimacy and cuddling."

"I thought you looked hot..." = "I am likely to be one of those guys who is going to be so persistent in making attempts to get casual sex out of you tonight that it is going to drive you up a wall."

I have nothing against sex, but like many people, I am annoyed by persistent attempts to get things from me.

p/s/a: Going up to a girl pretty much anywhere in public and saying something like "I thought you looked cute and wanted to meet you" actually works if your body language is in order. If this seems too scary, going on Chatroulette or Omegle and being vaguely interesting also works, and I know people who have gotten married from meeting this way.

Probably already accounted for by the use of the word "girl" rather than "woman" here, but I suspect this depends on the age of the lady in question (and on the age of the man, for that matter).

Going up to a girl pretty much anywhere in public and saying something like "I thought you looked cute and wanted to meet you" actually works if your body language is in order.

Going up to a /anyone/ and telling them you find them attractive works decently well with the right body language, regardless of the genders involved on either end.

At times when I was low on iodine or B vitamins, I've had the zombie one day functioning the next experience as well. There are other things that are supposed to have an effect like omega 3. Then there are other things like the "Atkin's attitude" which is reported to happen to some who reduce their carb levels enough to make their blood sugar too low. It might be possible to eat a weird enough diet that you consume too little tryptophan to make serotonin. It might make more sense to consider the full spectrum of relevant substances instead of trying this and that.

Also, not all vitamin supplement brands are equal. Some are far, far better than others. On consumerlab.com Solgar, Jarrow, Puritan's Pride, Vitamin World and Nature's Bounty were tested in lots of different reviews and have a very good track record, whereas there are a lot of other brands that, after only a few tests, showed problems with things as shocking as lead contamination and spoilage - not to mention the problem of simply not providing as much of the substances as they claimed to.

If you need supplements to stay happy, I hope you have a high-quality one.

p/s/a: Vitamin D supplements can take you from depressed zombie to functioning human being in one week.

Anecdote time!

A therapist suggested a few months ago that I get my Vitamin D level checked — citing low levels as a possible cause of low, somewhat depressive moods. I finally got around to doing that. Last week I got the test results; it turns out it's a bit below the normal range. So my doctor advised I should take 1000 IU of Vitamin D3 daily. I'm not sure it's working, but I have generally felt both more cheerful and more productive since.

But don't start taking it without actually testing first. Hypervitaminosis D doesn't sound like any fun at all.

pretty much anywhere in public

For some value of “pretty much anywhere in public”, I guess. I wouldn't do that in an Islamic country, for example.

p/s/a: Vitamin D supplements can take you from depressed zombie to functioning human being in one week.

This might be particularly relevant if you live somewhere where the sun gets turned off for winter. I anecdotally de-zombified myself last January when I thought of the SAD connection and started eating vitamin D supplements.