Core FSN

Core FSN EDUCATE, MOTIVATE, DOMINATE
Promote a winning environment that provides athletes the opportunity to grow physically, mentally, and emotionally.

Through each athletes commitment to hard work, success is the ultimate reward. Core FSN provides adult group training and youth speed, agility and strength training to the Saint Charles, IL, area. Keeping Physical and Mental Wellness a Priority in Your Daily Life
At Core FSN, adults work one-on-one with a trainer and coach or in a group setting. Teen, middle-school and youth athletes have a dedicated space and a team of coaches to help foster their progress. Our classes focus on optimizing strength and improving overall fitness. We also have a dedicated “workout of the day,” and a range of daily classes and sessions. We created CoreFSN to “fit “in with your daily lifestyle, goals, and availability. A healthy way of eating supports a healthy way of living. Core Nutrition is a place to refuel and rebuild post-workout and your destination when you’re looking for a “meal on the go” that won’t be detrimental to your healthy lifestyle.

09/09/2026

BEST PROTEIN SHAKES AND TEAS IN THE WORLD.

09/08/2026

CHALLENGE = CHANGE

09/07/2026

# Fitness

Outside of the gym i’m… ⬇️PERSONAL TRAINING AT A SMALL GROUP LEVEL FOR ADULTSNewbie special is back! Adults: Try Small G...
09/04/2026

Outside of the gym i’m…
⬇️

PERSONAL TRAINING AT A SMALL GROUP LEVEL FOR ADULTS

Newbie special is back!
Adults: Try Small Group Personal Training FREE for
1 Week in bio

📆CLASS SCHEDULE
ADULTS:
Monday through Thursday:
5am, 6am, 7am, 8am, 9am, 5pm
Friday:
5am, 6am, 7am, 8am, 9am
Saturday:
7am

KIDS:
Monday, Tuesday, Wednesday, & Thursday:
4:30pm - 6:30pm
Saturday:
9am - 11am
-
💪🏼Treat yourself or someone special to a FREE WEEK
📞Call/DM us on instagram: (847) 393-3316

📍731 N 17th Street, Unit 10
Saint Charles, IL

🧋Visit Core Nutrition STC for more on balanced meals & elevated energy

09/02/2026

Sit & Spin!
⬇️

PERSONAL TRAINING AT A SMALL GROUP LEVEL FOR ADULTS

Newbie special is back!
Adults: Try Small Group Personal Training FREE for
1 Week in bio

📆CLASS SCHEDULE
ADULTS:
Monday through Thursday:
5am, 6am, 7am, 8am, 9am, 5pm
Friday:
5am, 6am, 7am, 8am, 9am
Saturday:
7am

KIDS:
Monday, Tuesday, Wednesday, & Thursday:
4:30pm - 6:30pm
Saturday:
9am - 11am
-
💪🏼Treat yourself or someone special to a FREE WEEK
📞Call/DM us on instagram: (847) 393-3316

📍731 N 17th Street, Unit 10
Saint Charles, IL

🧋Visit Core Nutrition STC for more on balanced meals & elevated energy

Are you up for the challenge? ⬇️PERSONAL TRAINING AT A SMALL GROUP LEVEL FOR ADULTSNewbie special is back! Adults: Try S...
08/31/2026

Are you up for the challenge?
⬇️

PERSONAL TRAINING AT A SMALL GROUP LEVEL FOR ADULTS

Newbie special is back!
Adults: Try Small Group Personal Training FREE for
1 Week in bio

📆CLASS SCHEDULE
ADULTS:
Monday through Thursday:
5am, 6am, 7am, 8am, 9am, 5pm
Friday:
5am, 6am, 7am, 8am, 9am
Saturday:
7am

KIDS:
Monday, Wednesday, Friday:
11am - 1pm
Tuesday, Thursday:
4:30pm - 6:30pm
Saturday:
9am - 11am
-
💪🏼Treat yourself or someone special to a FREE WEEK
📞Call/DM us on instagram: (847) 393-3316

📍731 N 17th Street, Unit 10
Saint Charles, IL

🧋Visit Core Nutrition STC for more on balanced meals & elevated energy

Speed, power, agility reaction quickness and the mental advantage We got you. 💯💯💯💯💯Preparing Atheletes in St. Charles f...
08/28/2026

Speed, power, agility reaction quickness and the mental advantage

We got you. 💯💯💯💯💯

Preparing Atheletes in St. Charles for the last 19+ years. Come see us. We are what you’re looking for.

08/27/2026

These two 😂
⬇️

PERSONAL TRAINING AT A SMALL GROUP LEVEL FOR ADULTS

Newbie special is back!
Adults: Try Small Group Personal Training FREE for
1 Week in bio

📆CLASS SCHEDULE
ADULTS:
Monday through Thursday:
5am, 6am, 7am, 8am, 9am, 5pm
Friday:
5am, 6am, 7am, 8am, 9am
Saturday:
7am

KIDS:
Monday, Wednesday, Friday:
11am - 1pm
Tuesday, Thursday:
4:30pm - 6:30pm
Saturday:
9am - 11am
-
💪🏼Treat yourself or someone special to a FREE WEEK
📞Call/DM us on instagram: (847) 393-3316

📍731 N 17th Street, Unit 10
Saint Charles, IL

🧋Visit Core Nutrition STC for more on balanced meals & elevated energy

Address

731 N 17th Street , Unit 10
Saint Charles, IL
60174

Opening Hours

Monday 5am - 8:30pm
Tuesday 5am - 8:30pm
Wednesday 5am - 8:30pm
Thursday 5am - 8:30pm
Friday 5am - 8:30pm
Saturday 6am - 2pm

Telephone

+16304036495

Website

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