Saliva runs on chewing. Most of us stopped.

Strange science

A 1982 monkey study, a mouth that goes dry after 50, and the link almost nobody makes.

A squirrel monkey eating. Zoo photo, not a study animal.

Photo: "Artis Squirrel monkey eating" by Kitty Terwolbeck, CC BY 2.0 (creativecommons.org/licenses/by/2.0). Cropped. Zoo photo, not a study animal.

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Strange science

The soft-food monkeys.

In 1982, scientists raised 43 squirrel monkeys on two kinds of food. Half got tough, natural food. Half got food made soft. The soft-food monkeys grew up with more crowded, crooked teeth and narrower dental arches. The paper ran in Science.

That's monkeys, not people. And food, not gum. The authors only said food texture may play a role. But it made us ask a strange question: when did any of us last chew something for real?

A normal day after 50

Almost none of it asks the jaw to work.

Coffee. Yogurt. Soft bread. A smoothie. Pasta. Almost none of it asks the jaw to work. And right around menopause, the mouth starts to change too.

One study compared women who still had periods with women after menopause. Saliva flow was significantly lower after menopause. Saliva pH was lower too.

Her words

Still dry by 3 p.m.

It starts small. Coffee breath that hangs on past 10 a.m. A mouth that feels like paper by the afternoon.

Then it gets close. A hug, a kiss, and she turns her head and reaches for a mint. Water bottle. Still dry. Mints. Still dry. Lozenges. Still dry. Mouthwash twice a day. Still dry by 3 p.m.

Then it shows up at the table. A 2026 review of 50 studies: less saliva, dry mouth, a burning feeling and taste changes came up again and again in women in and after menopause. The wine tastes off. Her favorite meal tastes off.

Saliva is what rinses the mouth. Less of it means less rinse, every hour of every day. The researchers called for more awareness among dentists and doctors.

The PubMed record of the study on saliva flow after menopause
The link almost nobody makes

Saliva runs on chewing.

In that menopause study, researchers measured saliva by having women chew wax for 10 minutes. Chewing is how the mouth makes saliva on demand.

In 2026, dental researchers in Amsterdam ran a test like it with mastic. In healthy young adults, chewing mastic resin made more saliva than chewing plain wax.*

A pile of real Chios mastic resin tears
2,500 years of chewing

A resin from one island.

Mastic is a resin from a tree on the Greek island of Chios. The European Medicines Agency's report says ancient Greek doctors wrote about it, and calls mastic the first natural chewing gum of the ancient world, used to clean the teeth and freshen the breath. People on Chios have chewed it for about 2,500 years.

A real mastic grove on Chios, Greece
Real mastic resin tears drying on a trayGet up to $25 off your first box

One ingredient. Ships same or next day.

One ingredient

Gum of Gods Classic.

Gum of Gods Classic is one ingredient: mastic resin, hand-harvested on Chios. It's firm. Nothing like soft gum. It works the muscles in your face and jaw. And you get fresher breath while you chew.

The Classic tin of Gum of Gods mastic
Picture it

A mouth that feels awake again.

The 3 p.m. meeting where she leans in to talk and doesn't think about it once. The hug that lasts. Coffee, then a piece of real resin, and a mouth that feels awake again.

An open Classic tin on a mastic tree root on Chios
The proof

Rated 4.9 from 810 reviews.

Rated 4.9 from 810 reviews on the Classic Pack. 60,000+ orders. We've worked with the Chios Mastiha Growers Association for five years. Hand-harvested on Chios. We pack orders by hand in Pennsylvania.

An open Classic tin on a mastic tree root on Chios
Fair warning: mastic is harvested on one island in the world, once a year. We've stocked out 12 times this year. Supply is very limited.
Questions

Before you try it

What is it, exactly?

The Classic tin is one ingredient: real mastic resin from Chios, chewed like gum. Nothing added.

What does it taste like?

Not minty, not candy-sweet. A clean, slow, firm chew.

How do I chew it?

Start with one or two small pieces. It starts crumbly, then comes together after a minute of chewing. Chew slowly, after meals or with your afternoon coffee.

Is it for everyone?

Not for people with dental work. Mastic is a hard resin. If you have crowns, bridges, implants, braces or dentures, skip this one.

Is it a medicine?

No. Gum of Gods is a food. It does not diagnose, treat or replace anything your doctor gives you. Talk to your doctor about your health and your medication.

When will it ship?

Ships same or next day. Every tin is packed by hand in Pennsylvania.

The Classic tin of Gum of Gods mastic

When did you last chew something for real?

Get up to $25 off your first box

One ingredient. Ships same or next day.

Sources: Corruccini RS, Beecher RM, Science 1982;218(4567):74-6 (PMID 7123221). Butera A et al., J Clin Med 2026;15(15):5757 (PMID 42589861). J Clin Diagn Res 2014 (PMID 24701542). Assy Z et al., Front Dent Med 2026;7:1888616 (PMID 42614181). European Medicines Agency, assessment report on Pistacia lentiscus L., resin (mastic). Photo: "Artis Squirrel monkey eating" by Kitty Terwolbeck, CC BY 2.0 (creativecommons.org/licenses/by/2.0). Cropped. Zoo photo, not a study animal.

*Research is on mastic, not on Gum of Gods specifically. Forms and doses varied.

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