Get strong, build confidence, and actually enjoy how you eat.

I’m Erika, a personal trainer and nutrition coach in the East Bay. Before coaching, I spent years as a product designer at tech companies like Spotify, Uber, and Snap, so I know firsthand what a packed calendar does to good intentions.

Whether you want online coaching or personal training in the East Bay, we’ll build a sustainable plan around your real life.

Erika Vig coaching a client through a seated machine exercise at The Lab Gym in San Ramon

IFBB Bikini Pro Bodybuilder · NASM, ACE & Precision Nutrition certified · Doctor of Physical Therapy on my team · Coaching since 2020

Real women. Real progress.

  • Nicolle's before and after side-view photos from a 10-week fat-loss phase

    Nicolle

    10-WEEK FAT-LOSS PHASE

    Lost 11.8 lbs and went from 31.2% to 24.9% body fat (DEXA scan)

    • Lawyer and mom of two

    • Strength training 4x a week

    • Tracked only protein and calories

    • Sleeping better, off melatonin

  • Maya's before and after front-view photos from a 13-week fat-loss phase

    Maya

    13-WEEK FAT-LOSS PHASE

    Lost 10 lbs, gained 7.3 lbs of muscle and went from 31.8% to 24% body fat (DEXA scan)

    • Software engineer, new to lifting

    • Strength training 4x a week

    • Tracked macros, occasional untracked meal

    • Trusts herself with food on vacation

  • Kayle's before and after front-view photos from a 14-week reverse diet

    Kayle

    14-WEEK REVERSE DIET

    Held her weight while raising calories from 1,400 to 1,940

    • Marketing director

    • Strength training 4x a week

    • Tracked macros, one untracked meal a week

    • Cut running from 20 to 5–10 miles a week

    • Brought back foods she used to fear

More incredible progress

What clients are saying

"What I thought would only be a few months has turned into over five years with Erika, and I’ve never felt healthier or more in-tune with my body. Through weight training and nutrition, she pushes you without driving you away. She genuinely cares and won't let you fail."

— Annette S.

"Not only has my physical strength increased since working with Erika, I’m also so much more confident going to the gym. She makes workouts easy to follow, explains complicated exercises clearly, and makes working out a joy no matter your experience level."

— Jenny G.

"Starting in my mid-60s, I've lost over 15 lbs, gained strength, and achieved my best lab results in ten years. What sets Erika apart is her intuitive, encouraging approach. She tailors workouts around my back pain and incorporates foods I love, making healthy living enjoyable."

— Wendy V.

An intentional approach to coaching

  • I keep my roster small

    I cap how many clients I take on so I actually know your life — when work is crazy, how you’re sleeping, and when your back is acting up.

  • I always explain the "why"

    You’ll never just get a random PDF update. We look at your check-ins, photos, and lifts together with a Loom recording, and I walk you through every change we make.

  • What works, not what's trendy

    No gimmicky exercises just to leave you sore or changing it up every week. Your plan is built around the core fundamentals of strength training and nutrition.

  • Built around food you love

    I will never ask you to give up chocolate. Whether you’re vegetarian, eat family meals like dal and roti, or just love dessert, we fit the foods you enjoy right into your plan.

Erika Kehrwald, personal trainer and nutrition coach in San Ramon, during a professional photoshoot at The Lab Gym in San Ramon
Erika Vig, IFBB Bikini Pro and personal trainer, seated and smiling

Meet your coach

Erika Vig (competes as Erika Kehrwald) is a vegan IFBB Bikini Pro and NASM-, ACE- and Precision Nutrition–certified coach in Danville, California. She’s been a personal trainer and nutrition coach since 2020.

I spent years chasing my bikini pro card… and I earned it. Now I do what I love full time: help women enjoy their body again and learn how to lift.

Fair warning: I’ve been told I lie about how many reps are left!

Three ways to train together

  • Erika reviewing a client check-in on her iPad

    Online training & nutrition coaching

    Custom workouts and nutrition tailored to your schedule, whether you train at a gym or at home. We check in weekly to adjust your plan, and you can message me anytime for form checks or questions.

    From $400/month · anywhere

  • Erika coaching a client at The Lab Gym in San Ramon

    Personal training at The Lab Gym

    One-on-one coaching in San Ramon. I’m right there with you to guide your form, pick the right weights, and help you feel completely comfortable on the gym floor. Total beginners welcome.

    $100–150/session · San Ramon

  • Erika training a client at home with the equipment she brings

    In-home training in the East Bay

    Private coaching in the comfort of your own space. I bring the program straight to your living room, garage, or home gym across Danville, Alamo, Blackhawk, Walnut Creek, Lafayette, and nearby.

    $130-160/session · East Bay

Stepping on stage?

  • Front and back check-in photos of a bikini competitor in a blue competition suit ahead of her first showClient check-in photos for her first bikini show ever

    Bikini & Fit Model prep coaching

    Complete contest prep from an active IFBB Pro. Whether it’s your very first show or your fifth season, we cover everything from off-season growth to peak week, show day, and posing. Online or in-person.

  • Erika on stage at an IFBB Pro bikini show in front pose

    Posing & stage routine lessons

    Master your presentation and stage presence. Perfect for first-time competitors and seasoned athletes alike. Available 1-on-1 in person or virtually.

How it works

  • Book a free intro call

    We’ll chat for 15 min about your goals, your schedule, and any nagging aches, and figure out whether online, gym, or in-home training is the best fit.

  • Get your custom plan

    For online coaching, I’ll set up your custom workouts and nutrition in the app. For in-person, we’ll kick off with a movement assessment and set your weekly session schedule.

  • Adjust as we go

    Whether we’re working together on every rep in person or checking in weekly online with 24-hour feedback, your plan evolves as you get stronger—and adjusts when life gets busy.

Common questions

Get to know me on Instagram

There’s no perfect time to start.

Let’s build a plan that fits the life you have right now. Book a free 15-minute call (or send a quick form) and let’s see if we’re a good fit.