Josh D.
8/11/2024
I've been training with Jeff for almost two years now, and it's been a blast! Since my goals are more focused on power lifting and hypertrophy, our weekly sessions typically consist of a few sets...
Jeff Sun Fitness
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725 San Aleso Ave Ste 2
Sunnyvale, CA 94085
Jeff Sun Fitness is a certified personal training service located in Sunnyvale, CA, specializing in helping clients achieve their fitness goals through customized workout plans and nutrition guidance.
With a focus on building lean muscle, losing fat, and improving mobility, Jeff Sun Fitness offers both in-person and online training options, utilizing a physiology-based approach to ensure clients become healthier and stronger every day.
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Reviews
5.016 reviewsM K.
4/16/2025
I can't say enough good things about training with Jeff. He creates such a positive, encouraging space -- no guilt, just a great workout. What really stands out is his deep understanding of body...
Anthony C.
4/8/2025
I never write reviews, but I've been coming here for a while now (3-4 years or so). It has been worth every penny. Jeff is super knowledgeable and friendly. Any goals you have in mind, he will...
Ming J.
5/16/2024
My daughter has been playing badminton for several years, and her coach recommended Jeff to help improve her power and explosiveness. Jeff is very friendly and professional. He started by testing...
Justin M.
4/18/2022
I am a professional badminton player and have been training with Jeff for the past year! He is far and beyond the best trainer I have ever worked with, after going through many different gyms and...
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