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Max Muscle Castro

3600 16th St
San Francisco, CA 94114

Monday-Friday 10:30 am – 8 pm
Saturday-Sunday 10 am - 6 pm


Ian Powers


My name is Ian Powers. I am a true San Francisco native and proud to be. I love my city. I have been working in this industry, with Max Muscle Sports Nutrition since I was 19 years old.

I started out not knowing anything about sports nutrition, supplementation, weight training. I wanted to start working in this field because I always found health & wellness to be very interesting, and this whole embodiment of sports, training, competing, and sports nutrition technology always peaked a great interest in me. I also have always loved being active go,go,go, always either exercising or out trying to experience life by pushing physical limits.

When I began with max muscle at age 19, I started out just doing the stock duties. unpacking orders, stocking shelves all shipping and receiving. It was a great way for me to familiarize myself with all of the products and be able to see what types of products moved well and worked the best for our clients. In a short amount of time I was able to move up to a sales position, from there to assistant manager. And then yet again to store manager, and lead on site Sports Nutritionist at the San Francisco Location.

I am currently a NESTA Certified Fitness Nutrition Coach. I Have worked with hundreds of nutrition clients over the past years, and changed many lives and made some very great friends in the process. Not only by helping my clients to understand the benefits of nutrition but how to apply everything to their daily lives and create a sustainable and long lasting way of life. And for those who know me best know...I always practice what I preach when it comes to nutrition and this active healthy lifestyle, I AM MAX MUSCLE.

I plan on being in the industry and with this awesome company "Max Muscle Sports Nutrition" for the long haul, and hope someday to own my own, and yes in the best city by the bay. I eat, sleep, live and breathe this lifestyle and will for the rest of my life.

Daniel Guzman

My name is Daniel Guzman. I've been with Max Muscle for the past two years. I am currently attending Sacramento State University majoring in Business Administration and a minor in nutrition.

I live a very active lifestyle; whether it's just working out or playing a variety of different sports. I am always looking for new work outs and ways to push my body to its limit.

Nutrition is a big part of my life. I follow strict meal plans to help with my weight management. Over the years I have struggled with weight management, but living a Max Muscle lifestyle has helped me solve that problem. I am a NESTA Certified Nutritional Coach and have the knowledge to help others out through their struggles.

The Max Muscle lifestyle will always be a part of my life and someday I hope to open my own Max Muscle Franchise to keep helping people with their nutritional needs.

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