The Unstacking Diet™ for Metabolic Health: Americans Don’t Just Eat Carbohydrates—We Stack Them.

By Dr. Kim Byrd-Rider, PT, DPT

Walk into almost any restaurant and you’ll see the same pattern.

A sandwich on two slices of bread.

Served with French fries.

Covered in ketchup or barbecue sauce.

Washed down with a sugary drink.

Finished with dessert.

Or perhaps it’s tacos with rice, beans, tortilla chips, a flour tortilla, sweet salsa, and a margarita.

Or pasta served with garlic bread, followed by cheesecake.

We don’t simply eat carbohydrates.

We stack them.

Bread on bread.

Potatoes with bread.

Rice with tortillas.

Pasta with breadsticks.

Sugary sauces layered onto already carbohydrate-rich meals.

Hidden sugars in ketchup, barbecue sauce, honey mustard, teriyaki sauce, salad dressings, coffee drinks, smoothies, and dipping sauces.

Breading wrapped around fried foods.

One meal can easily contain five or six separate sources of concentrated carbohydrates before we’ve even realized what happened.

Meanwhile, the vegetables become a garnish instead of the foundation of the meal.

Protein becomes secondary.

Healthy fats nearly disappear.

The Problem Isn’t Carbohydrates

Carbohydrates are not the enemy.

Your brain needs glucose.

Your muscles use glucose.

Athletes need carbohydrates.

Children need carbohydrates.

Pregnant and breastfeeding women have increased carbohydrate requirements.

Whole fruits, beans, oats, potatoes, and whole grains can all be part of a healthy eating pattern.

The problem isn’t eating carbohydrates.

The problem is stacking them.

Research over the past several years has consistently shown that dietary patterns emphasizing vegetables, adequate protein, healthy fats, fiber-rich carbohydrates, and fewer refined grains and added sugars are associated with better metabolic health, improved blood sugar regulation, lower triglycerides, and reduced risk of Type 2 diabetes and cardiovascular disease.

The research doesn’t say everyone should eliminate carbohydrates.

It says we should choose them wisely.

The Unstacking Diet™ Philosophy

The Unstacking Diet™ is built on one simple principle:

Choose one primary carbohydrate at each meal.

Then build the rest of your plate around:

✔ A quality protein

✔ A healthy fat

✔ Plenty of non-starchy vegetables

That’s it.

No calorie counting.

No complicated math.

No weighing food.

No eliminating entire food groups.

Simply stop stacking carbohydrates.

What Counts as a Primary Carbohydrate?

Examples include:

• Bread or hamburger bun

• Rice

• Pasta

• Potatoes

• Sweet potatoes

• Corn

• Tortillas

• Oatmeal

• Cereal

• Fruit

• Beans or lentils

• Crackers

• Chips

• Dessert

• Sugary beverages

Choose one.

Enjoy it.

Then stop adding more.

What Doesn’t Count?

Non-starchy vegetables.

Eat them generously.

Examples include:

• Broccoli

• Cauliflower

• Spinach

• Kale

• Lettuce

• Green beans

• Asparagus

• Brussels sprouts

• Mushrooms

• Cucumbers

• Zucchini

• Tomatoes

• Bell peppers

• Cabbage

Vegetables provide fiber, water, vitamins, minerals, and plant compounds that support health while contributing relatively little digestible carbohydrate.

They should make up a large portion of your plate.

Hidden Carbohydrates Count Too

One of the biggest reasons Americans unknowingly stack carbohydrates is because many aren’t obvious.

Added sugars hide in:

• Barbecue sauce

• Ketchup

• Honey mustard

• Sweet chili sauce

• Teriyaki sauce

• Glazes

• Coffee drinks

• Salad dressings

• Smoothies

• Yogurts

• Dipping sauces

Another hidden source?

Breading.

Fried chicken isn’t just chicken.

It’s chicken wrapped in refined flour.

The same is true for:

• Chicken tenders

• Breaded fish

• Onion rings

• Mozzarella sticks

• Fried shrimp

• Tempura

These hidden carbohydrates add to the stack.

Don’t Eat Carbohydrates Alone

Research also suggests that the order and combination of foods matters.

Eating vegetables and protein before carbohydrates—and combining carbohydrates with protein, healthy fats, and fiber—can reduce the size of the post-meal glucose rise compared with eating carbohydrate alone.

Instead of eating:

❌ An apple

Try:

✔ An apple with peanut butter.

Instead of:

❌ Crackers

Try:

✔ Crackers with cheese.

Instead of:

❌ Toast

Try:

✔ Toast with eggs.

Instead of:

❌ A banana

Try:

✔ A banana with Greek yogurt.

The goal isn’t to fear carbohydrates.

It’s to slow them down.

What an Unstacked Plate Looks Like

Imagine your dinner plate.

Half the plate

🥦 Non-starchy vegetables

One-quarter

🍗 Lean protein

One-quarter

🍠 One primary carbohydrate

Plus

🥑 A healthy fat

Simple.

Balanced.

Satisfying.

Restaurant Makeovers

🍔 Hamburger Stacked

• Top bun

• Bottom bun

• French fries

• Ketchup

• Soda

Five carbohydrate sources.

Unstacked

• Open-faced hamburger (one bun half)

• Side salad

• Avocado

• Mustard

• Water

One primary carbohydrate.

🌮 Mexican Restaurant Stacked

• Tortilla chips

• Flour tortillas

• Rice

• Beans

• Margarita

Five carbohydrate sources.

Unstacked

Grilled fajitas

Peppers

Onions

Guacamole

Choose ONE:

• Rice

• Beans

• Tortillas

• Corn

🍝 Italian Restaurant Stacked

Garlic bread

Breaded chicken

Pasta

Dessert

Unstacked

Grilled chicken

Roasted vegetables

Olive oil

Choose ONE:

• Pasta

• Bread

• Dessert

🍳 Breakfast Stacked

Toast

Hash browns

Orange juice

Sweetened coffee

Unstacked

Eggs

Spinach

Avocado

Choose ONE:

• Oatmeal

• Toast

• Fruit

• Potatoes

Why It Works

The Unstacking Diet™ isn’t about perfection.

It’s about awareness.

Instead of asking,

“How many calories is this?”

Ask,

“How many carbohydrates have I stacked onto this plate?”

That one question changes everything.

It naturally increases vegetables.

It naturally increases protein.

It naturally reduces added sugars.

It naturally decreases refined grains.

It naturally improves meal balance.

Without complicated rules.

A Simple Rule You Can Remember

Every meal should include:

🥩 One quality protein

🥑 One healthy fat

🥦 Plenty of vegetables

🌾 One primary carbohydrate

No stacking.

No guilt.

No extremes.

Just better choices made consistently.

Final Thoughts

Lifestyle medicine isn’t about chasing the perfect diet.

It’s about creating habits that you can sustain for decades.

The Unstacking Diet™ isn’t another restrictive eating plan.

It’s a different way of seeing food.

Once you recognize how often carbohydrates are stacked together, you’ll never look at a restaurant menu the same way again.

You don’t have to eliminate carbohydrates.

You simply have to stop letting them dominate your plate.

Sometimes lasting health doesn’t come from removing an entire food group.

Sometimes it comes from something much simpler.

Stop stacking.

Start unstacking.

One meal.

One choice.

One healthier life at a time.

References

American Diabetes Association Professional Practice Committee. Standards of Care in Diabetes—2025. Diabetes Care. 2025.

Ludwig DS, et al. Carbohydrate quality and human health: a series of systematic reviews and meta-analyses. The Lancet. 2024.

Martínez-González MA, et al. Mediterranean diet and metabolic health: Recent advances. Nutrients. 2023.

Lane KE, et al. Ultra-processed food consumption and cardiometabolic outcomes: Umbrella review. The BMJ. 2024.

Evert AB, et al. Nutrition therapy for adults with diabetes or prediabetes. Diabetes Care. Updated 2024.

Shukla AP, et al. Food order and postprandial glucose responses: Recent evidence and clinical implications. Diabetes Care. 2024.