Breen Center for Optimal Health

Breen Center for Optimal Health We are a premier integrative health & wellness practice who work with men and women to optimize their health.

We focus on preventive and functional medicine and are experts in BHRT. We offer comprehensive nutritional services as well, and much more.

Brain fog is reported by approximately 62% of women during menopause.And brain fog isn’t something you simply have to ac...
09/04/2026

Brain fog is reported by approximately 62% of women during menopause.

And brain fog isn’t something you simply have to accept.

Hormones are one piece of a much bigger picture. The right approach starts with understanding yours.

Visit us today at The Breen Center for Optimal Health.

09/02/2026

POV: When Dr. Breen is left unattended 👀

08/31/2026

Let’s clear up a few things about testosterone.

Dr. Fontaine is here to debunk the myths and give you the facts. Watch now, save for later. 👆

08/27/2026

Just a completely normal day at the office. Nothing to see here. 👀

Meet Dr. Jim Fontaine: medical provider, motorcycle enthusiast, 5 a.m. menace, and firm believer that you don’t get resu...
08/25/2026

Meet Dr. Jim Fontaine: medical provider, motorcycle enthusiast, 5 a.m. menace, and firm believer that you don’t get results without doing the work.

Swipe to get to know the newest Breen Center All-Star!

08/21/2026

Dr. Breen recommends asking two questions to screen a doctor you want to see for hormone replacement therapy as a male:

How often should I donate blood while on testosterone replacement therapy?

The answer should be never.

Do you recommend that men take estrogen blockers such as Arimidex (or anastrozole) for men using testosterone replacement therapy?

50% of the benefit from testosterone replacement therapy comes from the increase in estradiol in men. So the answer should also be no.

08/19/2026

Double the talent. Double the trouble. 😉

Dr. Breen + Dr. Fontaine = the dream team. ✨

08/17/2026

• You can’t suffer your way to health.
• Hydration is underrated.
• Total body weight is not the best metric for measuring progress.
• Fiber is a crucial nutrient.
• There is no diet that fits all.
• Sleep is a nutrition intervention.
• Emotional eating is not a moral failing.
• Progress over perfection.

08/15/2026

We’d like to give a warm welcome to the newest member of the Breen Center for Optimal Health’s team, Dr. Jim Fontaine.

We are so excited to have him on board and we know he will be a huge asset to our patients.

08/13/2026

POV: You came for the nutrition. Stayed for the therapy session. 🤭

Address

17910 Sky Park Circle
Irvine, CA
92614

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 4pm

Telephone

+18777210047

Website

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