Dr. Lawrence David

speaker

102 appearances 1 recordings 1 series first heard Aug 2026 last heard 5 Aug

Dr. Lawrence David’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Aug 2026 with 1.

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Science Friday · What do people eat? Plant and animal DNA in sewage provide clues · 5 Aug 2026 podcast

Does it matter, say, how wealthy a city or a neighborhood is?

Does everyone seem to have equal access to those kinds of foods?

Those are the kinds of questions we think hopefully now it'll be easier to get data on as well as get data in almost in a matter of days.

Oh, yeah, definitely.

I think, you know, this is measuring what people are eating.

Right.

And that they might not necessarily it's not like they signed a piece of paper saying that that's what they're they're doing.

Right.

One of the couple of ways that we moderate that, one is that we make sure never to sample an area where there are fewer than 500 people so that people can remain anonymous and we're not identifying anyone.

And then second, what we've

done a lot of is try to talk to people, kind of like we're talking now.

We try to be very open about what we're up to so that people, A, know, and B, we try to get as much feedback as we can from the communities near us for how to make this useful to them.

And we're hoping that that ultimately kind of mitigates some of those concerns.

But I think they're very well-founded because honestly, if people are watching what I'm eating, I kind of want to know about that.

Oh, and we do have those in mind.

You know, we have these protocols that we're prepping that are, they don't involve individuals eating things.

Instead, we can go to a very scientific study bathroom and do things like blend up foods and then just flush them down the toilet.

So that's how we're going to start analyzing those questions.

Yeah, it turns out you can do that too.

Very squeamish.

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