Dr. Mark Hyman

It comes from understanding what's actually happening inside your body.

Weight loss issues could be linked to leptin resistance.

Exhaustion could be linked to thyroid dysfunction.

And I've seen it so many times.

Someone feels great, energized, eating clean, crushing their workouts.

Then their labs tell a different story.

Silent inflammation, hormone imbalance.

nutrient deficiencies you can't feel until they become problems you can't ignore.

And that's why we built Function, giving you access to over 160 lab tests for your heart, your hormones, metabolism, nutrients, toxins, and lots more, trusted by hundreds of thousands of members for $365 a year.

So this year, don't rely on guesswork.

Get your data, track what matters, and make resolutions based on your biology.

Start your path to 100 healthy years at functionhealth.com.

Now, where the guidelines still fall a little bit short is, again, around the saturated fat.

I think there's some nuance there about personalization and about genetics.

It's capped at 10%.

There's not really strong causal evidence, meaning, you know, randomized controlled trials that show it's really bad in the right context.

But there's a couple of very, very, very, very, very, very important things.

So listen up, guys.

If you eat saturated fat, butter, meat, coconut oil, etc.,

full-fat dairy, whatever, in the context of a diet that's also high in starch and sugar, it's a big problem.