Avocado Toast
330 cal · 18g protein · 14g fiber
Nutrition,
Simplified.
Evidence-based nutrition coaching built for real life.
✓ Personalized nutrition strategy
✓ Weight loss & GLP-1 support
✓ Strength, performance & sustainable habits
JACK ACHENBACH · MS, RDN, CPT
YOUR PLANSimple priorities.
Clear next steps.
Clear next steps.
PROGRESSBuilt around
your real life.
your real life.
COACHING FOCUSProtein · Training · Habits
WEIGHT LOSS•GLP-1 SUPPORT•SPORTS NUTRITION•BODY COMPOSITION•HABIT CHANGE•
WEIGHT LOSS•GLP-1 SUPPORT•SPORTS NUTRITION•BODY COMPOSITION•HABIT CHANGE•
Personalized Plans
Nutrition tailored to your goals.
Evidence-Based
Built on peer-reviewed research, not trends.
Sustainable Habits
Strategies that outlast the prescription.
Ongoing Support
Direct access to a coach who answers.
About Me
Hi, I'm Jack.
Registered Dietitian Nutritionist · Certified Personal Trainer
I help people lose weight, build muscle, improve their nutrition, and create habits that last. My approach combines clinical evidence with real-world coaching, whether someone is using a GLP-1 medication or building change without one. Structure is what turns effort into transformation.
More About Me
From the Kitchen
Practical recipes, built with structure.
Protein-forward meals, high-fiber staples, and everyday recipes with the nutrition numbers you actually want to see.
Banana Overnight Oats
455 cal · 37g protein · 15g fiber
Blackened Fish with Sweet Potatoes
300 cal · 28g protein · 6g fiber
Chicken Crunch Wrap
400 cal · 52g protein · 37g fiber
Chicken Fajita Rice Bowl
545 cal · 32g protein · 8g fiber
Chicken Salad Sandwich
460 cal · 45g protein · 29g fiber
How I Can Help
Coaching that connects the dots.
1:1 Nutrition Coaching
Personalized guidance for GLP-1 support, weight loss, performance, and metabolic health.
Body Composition
Protein and training strategies designed to preserve lean mass while losing weight.
Meal Strategy
Practical structures, recipes, and meal frameworks that make consistency easier.
Ready to take the next step?
Build a nutrition plan that works for your body and your life.
Personalized care, practical food, and a system you can actually sustain.
Book a Consultation
ABOUT STRUCTURED NUTRITION
Rooted in science.
Rooted in science.
Focused on you.
At Structured Nutrition, we believe real results come from personalized care, evidence-based strategies, and a coach who actually listens.
THE APPROACHStructure without rigidity.
Your plan starts with your goals, routine, medication, training, and real life.
PERSONALIZEDYour goals first.
EVIDENCE-BASEDClear reasoning.
PRACTICALBuilt for real life.
OUR STORYA passion for people.
A passion for people.
A commitment to results.
Structured Nutrition was founded with one goal in mind: to make high-quality nutrition care accessible, personalized, and effective.
We've helped clients overcome challenges, build confidence, and create sustainable habits that last well beyond the medication.
“Your health journey is unique — your plan should be too.”
Jack Achenbach
MS · RD · LD
Jack is a Registered and Licensed Dietitian with a Master of Science in Nutrition and Exercise Physiology and six years of experience across clinical nutrition, private practice, and sports nutrition—including work with the Philadelphia Eagles.
His approach combines nutrition science with the realities of everyday life. The goal is to translate evidence into clear, practical strategies you can actually follow—whether you're working on weight management, metabolic health, athletic performance, or simply building a more consistent way of eating.
REGISTERED DIETITIANLICENSED DIETITIANMS · NUTRITION & EXERCISE PHYSIOLOGY
Weight Management & GLP-1 Nutrition
Sports & Performance Nutrition
Diabetes & Prediabetes
Heart & Metabolic Health
Personalized Macros
Evidence-Based Supplements
Outside of nutrition, Jack enjoys lifting, cooking, and woodworking—interests built around the same idea behind Structured: learn the fundamentals, build deliberately, and create something that lasts.
Work with Jack ↗OUR APPROACH
Structure without rigidity.
We combine evidence, individual preferences, real-world food choices, and measurable goals.
Understand
Start with your routine, goals, preferences, and barriers.
Build
Create a focused strategy that is clear enough to follow.
Adapt
Adjust the plan as your body, schedule, and goals change.
SERVICESPersonalized care.
Personalized care.
Practical structure.
Nutrition support designed around your goals, medication, lifestyle, training, and the food you actually eat.
1:1 COACHINGOne plan. Built around you.
Nutrition, training, accountability, and adjustments in one coordinated approach.
WHAT WE WORK ON
Support that connects the pieces.
1:1 Nutrition Coaching
Individualized nutrition strategy, accountability, and follow-up for weight loss, GLP-1 use, body composition, and metabolic health.
Start here ↗Personalized Meal Plans
Meal structures and food options built around calorie, protein, fiber, preference, and lifestyle needs.
Performance Nutrition
Fueling strategies for strength, endurance, recovery, and preserving lean mass during weight loss.
Strength Training Guidance
Nutrition and training principles that work together to support muscle retention and progression.
Supplement Recommendations
Evidence-based guidance to simplify what is useful, what is optional, and what is mostly marketing.
Accountability Coaching
Ongoing structure, check-ins, problem-solving, and adjustments as your needs change.
FOOD THAT FITS THE PLAN
Your nutrition plan should come with ideas you actually want to eat.
The recipe library gives you practical meals with calories, protein, fiber, net carbs, and saturated fat shown per serving.
Explore Recipes ↗PROTEIN
FIBER
FLEXIBILITY
BOOKS & GUIDESEducation you can
Education you can
actually use.
Evidence-based guides designed to turn nutrition information into clear, practical action.
STRUCTURED LIBRARYLearn it. Use it. Keep it.
Practical frameworks designed to live beyond the appointment.
BESTSELLER · AVAILABLE
The GLP-1 Nutrition Guide
A 40+ page framework for navigating GLP-1 medications, protecting muscle mass, managing side effects, and building habits that outlast the prescription.
Preview Guide ↗The Protein Playbook
Hit Your Targets at Every Stage of Life
A practical guide to optimizing protein intake for muscle preservation, body composition, and metabolic health.
The Metabolic Reset
Transitioning Off Weight Loss Medications
A step-down framework for maintaining results when stepping down or stopping GLP-1 therapy.
PAIR EDUCATION WITH FOODLearn the framework. Then put it on the plate.
Browse Recipes ↗STRUCTURED RECIPESFood for real life.
Food for real life.
Nutrition with structure.
Search the full recipe library from your Structured collection. Every recipe shows calories, protein, fiber, net carbs, and saturated fat.
RECIPE LIBRARYUseful food. Useful numbers.
Built to make the plan easier to follow day to day.
FIND YOUR NEXT MEAL
Search by food, meal, or ingredient.
FREE CALORIE CALCULATOR
Find your starting calorie and protein targets.
Enter a few details to estimate your daily calories, protein range, and fiber target. Then use Structured to put those numbers into practice.
CALORIESPersonalized
PROTEINGoal-based
FIBER30 g/day
CALCULATE YOUR TARGETS
Structure Your Macros
STEP 1
Enter your information
Enter a valid age, height, and weight.
Estimated starting targets only. Individual needs can differ based on medical conditions, medications, body composition, and training demands.
STEP 2
Your daily targets
DAILY CALORIE TARGET— kcal/day
MAINTENANCE— kcal
PROTEIN— g
FIBER30 g
BMI—
STRUCTURED APP
Explore the App ↗Now put your targets to work.
Track nutrition, calories, macros, weight, training, and progress in one place.
PERSONALIZED NUTRITION CARE + OPTIONAL APP SUPPORTClear nutrition guidance.
Clear nutrition guidance.
More structure when you want it.
Use the Structured app for meal tracking, customized workouts, habit goals, and progress coaching. App memberships are optional and are separate from nutrition care.
SEE THE APP IN ACTION
Take a quick look at the app experience.
Nutrition tracking, meals, goals, habits, and progress tools in one connected system.
YOUR STRUCTURED EXPERIENCE
Everything you need to stay on track.
Your nutrition, training, habits, and progress in one place—so you always know what to focus on next.
NUTRITION
Track your meals and understand your progress.
Log food, monitor calories and macros, and see how your daily choices line up with the targets you are working toward.
Meal tracking
Keep meals, snacks, calories, and macros organized in one place.
Personalized targets
See the nutrition targets you are working toward each day.
Progress at a glance
Use your logged data to spot patterns and make better adjustments over time.
TRAINING
Know exactly what to do when it is time to train.
Follow your customized workout plan, record completed sessions, and keep your training organized alongside your nutrition.
TODAY'S WORKOUTUpper Body
Bench Press4 × 8
Lat Pulldown3 × 10
Shoulder Press3 × 10
Customized workouts
Your program is organized inside the app so you can follow it session by session.
Workout tracking
Record completed sessions and keep a consistent training history.
Progression support
Higher-tier coaching can use your training data to guide program adjustments.
HABITS
Turn the plan into repeatable daily actions.
Keep key behaviors visible, check them off as you go, and build the consistency that makes nutrition and training easier to sustain.
✓Hit your protein target
✓Complete today's workout
✓Log meals consistently
Simple daily goals
Focus on a few clear actions instead of trying to change everything at once.
Consistency you can see
Use check-ins and progress markers to stay aware of the habits you are building.
One connected system
Nutrition, training, and habits work together instead of living in separate places.
OPTIONAL MEMBERSHIPS
Choose the level of support you want.
All three app memberships are separate from your nutrition care.
$1.99/month
Track meals, calories, macros, weight, nutrition progress, and browse thousands of recipes.
- Meal tracking
- Calories + macros
- Weight tracking
- Nutrition progress tracking
- Recipe library
$4.99/month
Keep nutrition and exercise organized in one place with a customized workout program.
- Everything in Nutrition Tracking
- Customized workout program
- Workout tracking
- 5% off Structured supplements
MOST SUPPORT
PROGRESS COACHING$9.99/month
Individualized training support, progress-photo reviews, weekly progression targets, and personalized habits.
- Everything in Nutrition + Custom Workouts
- Individualized training support
- Progress photo reviews
- Weekly progression targets
- Personalized habit goals
- 10% off Structured supplements
APP FAQ
Common questions
Do I need the Structured app to work with you?
No. The app is optional and is not required to receive nutrition care.
Can I use only the nutrition tracking tier?
Yes. You can choose the $1.99/month Nutrition Tracking membership without adding workouts or progress coaching.
Are supplements required?
No. Supplement purchases are optional.
Which tier includes customized workouts?
The $4.99/month Nutrition + Custom Workouts tier and the $9.99/month Progress Coaching tier include customized workouts.
JACK'S PICKS
Products I Like.
A running list of foods and products I actually use, recommend, or keep in rotation. Browse by category and check back as the list grows.
Wraps & Bread
5 favoritesHigh Fiber Wraps
View product ↗Old El Paso Taco Shells
View product ↗Mission Carb Balance
View product ↗Sola Bagels
View product ↗647 Bread
View product ↗Pasta & Noodles
4 favoritesBrami Pasta
View product ↗Barilla Pasta
View product ↗Explore Cuisine Noodles
View product ↗Ramen Noodles
View product ↗Chips & Snacks
5 favoritesShameless Snacks
View product ↗Biena Roasted Chickpeas
View product ↗Crunch Peas
View product ↗Power Crisp Pretzels
View product ↗Quest Chips
View product ↗Bars & Granola
4 favoritesKind Protein Max Bars
View product ↗Think! Protein Bar
View product ↗Protein Max Granola
View product ↗Floura Bars
View product ↗Breakfast & Cereal
3 favoritesRatio Pro Fiber
View product ↗Premier Protein Cereal
View product ↗Ratio Protein Cereal
View product ↗Protein & Prepared
3 favoritesBare Chicken
View product ↗Pro Pints
View product ↗Costco Chipotle Chicken
Product link not added yetThese are personal product picks and examples, not a requirement to use any specific brand. Availability and formulations can change.
STRUCTURED JOURNALNutrition, without
Nutrition, without
the noise.
Practical, evidence-based articles on nutrition, weight management, GLP-1s, performance, protein, fiber, meal planning, and building habits that actually fit real life.
LATEST ARTICLES
The Structured Blog
Clear explanations and practical strategies you can use without turning nutrition into a full-time job.
Weight Management
When Weight Loss Slows Down, Do Not Immediately Eat Less
A plateau is a reason to assess the system—not automatically slash calories.
November 4, 2026 Read article →
Eating OutHow to Eat Out Without Feeling Like You Have to Start Over Tomorrow
Restaurant meals can fit into a weight-management plan. The skill is learning how to make them ordinary.
October 10, 2026 Read article →
Meal StructureBuild a Breakfast That Actually Holds You Over
Coffee alone is not a breakfast strategy if you are starving and improvising by late morning.
September 19, 2026 Read article →
CarbohydratesCarbs Are Not the Problem: Build the Meal Around Them Better
Instead of automatically removing carbohydrates, look at portion, pairing, timing, and the overall meal.
August 29, 2026 Read article →
Real Life NutritionConvenience Food Is Not the Enemy
A planned frozen meal or grocery-store shortcut can be more useful than an aspirational recipe you never make.
August 1, 2026 Read article →
PerformanceWhy I Keep Talking About Strength Training During Weight Loss
The goal is not simply to weigh less. It is to improve body composition, function, and the ability to maintain results.
July 11, 2026 Read article →
GLP-1 NutritionOn a GLP-1? Eating Less Makes Nutrition More Important
A smaller appetite can make weight loss easier, but it also leaves less room for low-value food choices.
June 20, 2026 Read article →
FiberHow to Eat More Fiber Without Turning Every Meal Into a Project
Fiber does not require a pantry overhaul. A few repeatable additions can change the entire day.
May 30, 2026 Read article →
ProteinProtein First: A Simple Way to Build Better Meals
Instead of rebuilding your entire diet, start by asking one question at each meal: where is the protein?
May 9, 2026 Read article →
HabitsWhy Structure Beats Perfection for Weight Loss
The plan that works on your busiest Tuesday is usually more useful than the perfect plan you can only follow for three days.
April 18, 2026 Read article →
STAY STRUCTURED
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Let's talk about
your goals.
Whether you're starting GLP-1 therapy, navigating side effects, working on body composition, or simply looking for more structure with food, send a note and we'll respond within 48 hours.
START HERETell us what you're working on.
A few details are enough to begin the conversation.
GET IN TOUCH
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Your information stays private. Every message is reviewed personally.
Structured NutritionEvidence-based nutrition coaching for real, sustainable health.
STRUCTURED NUTRITION
Ingredients
Preparation
Estimated Nutrition Per Serving
Estimated from the recipe ingredients and serving size using USDA-style generic food values; branded products and preparation can change totals.