ENROUTE Surgical Nutrition vs. PureClean Performance

ENROUTE Surgical Nutrition vs. PureClean Performance: Which Is Better for Pre- and Post-Surgery Nutrition?

Founded by Dr. Rick Cohen, M.D. | Physician, Biomedical Engineer | Updated September 2026

Disclosure: Dr. Rick Cohen, M.D. founded PureClean Performance and formulator of its products. This is therefore not an independent product review. It is our clinical and nutritional analysis of two different approaches to perioperative nutrition, with links to the underlying research so you can evaluate the evidence yourself.

If your surgeon sent you a link to ENROUTE Surgical Nutrition before an orthopedic procedure, you may have had the same reaction many patients do:

What exactly am I buying—and do I need a $349 surgery nutrition program to get it?

That is a reasonable question.

ENROUTE is a surgeon-oriented perioperative nutrition program. Its four-week package combines a protein-based BUILD formula taken before and after surgery with a separate preoperative carbohydrate or hydration product. The current program is listed at $349.

There is sound physiology behind several pieces of that strategy.

Protein matters.

Essential amino acids matter.

Preoperative carbohydrate loading can have a legitimate role in selected surgical protocols.

Creatine also has legitimate physiological rationale.

The "alternative" is not that ENROUTE contains useless ingredients.

Our question as a physician-founded brand and biomedical engineers is different:

Are those ingredients being targeted in the most effective way, and do you need to pay $349 to build a strong perioperative nutrition foundation?

If you prefer supplements packed in a convenient box containing a defined four-week surgical routine, ENROUTE does that well.

If the question is which approach we believe provides the stronger overall nutritional architecture and better long-term value, PureClean Performance stands out more.

Why?

Because we would rather target the major biological jobs needed for recovery:

1. Complete protein and collagen
2. Targeted essential amino acids
3. Whole-food phytonutrients and nutritional density
4. Any surgeon-directed carbohydrate loading, creatine, or other perioperative intervention handled separately when actually indicated

That is the logic behind our foundational nutritional products:

• PURECLEAN PROTEIN™
• FUNDAMINOS™
• CHOCOBERRY BLAST™

But before comparing ENROUTE vs. PureClean Performance deeper, it is worth understanding why surgeons are recommending nutrition around surgery at all.

Why Take Protein, Amino Acids or Carbohydrates Around Surgery?

Surgery is not merely a mechanical event.

It is a metabolic stress event.

Surgical trauma, inflammation, anesthesia, fasting, pain, reduced appetite and abrupt reductions in physical activity can all push the body toward a more catabolic state.

In simple terms:

The rate at which the body loses tissue can temporarily exceed the rate at which it rebuilds it.

This matters enormously in orthopedic surgery because muscle loss can occur surprisingly quickly when a leg is painful, swollen, inhibited and being used less.

Modern surgical nutrition therefore tries to address several different problems:

1. Prevent prolonged underfeeding

The latest ESPEN clinical nutrition guideline emphasizes integrating nutrition into surgical care, avoiding unnecessarily long periods of preoperative fasting, restarting oral nutrition early and addressing nutritional risk before it becomes severe.

Read the 2025 ESPEN Clinical Nutrition in Surgery Guideline →

2. Reduce the metabolic impact of prolonged fasting

That is where preoperative carbohydrate drinks come in.

3. Maintain amino-acid availability

Muscle cannot synthesize new protein without the required amino-acid substrate.

4. Limit loss of muscle during inactivity

This is particularly relevant to orthopedic surgery—and this is where the essential-amino-acid research becomes very interesting.

Why ENROUTE Includes Carbohydrates & PureClean Does Not

ENROUTE's perioperative program includes a separate carbohydrate or hydration component for use around the preoperative period.

There is a legitimate reason for this.

Preoperative carbohydrate loading has been studied as part of Enhanced Recovery After Surgery, or ERAS, protocols.

A carbohydrate drink before surgery can reduce the length of the traditional fasting period and may improve perioperative insulin sensitivity in selected surgical populations.

A 2025 network meta-analysis found that appropriately timed preoperative carbohydrate loading was associated with improvements in postoperative insulin resistance compared with fasting or placebo, although outcomes differ by surgical procedure, dose and timing.

Read the 2025 preoperative carbohydrate-loading meta-analysis →

So I am not arguing that carbohydrates before surgery are inherently bad.

They serve a specific metabolic purpose.

But that purpose is relatively narrow or lower value for the end consumer in a supplement because there are already great sources of dietary carbohydrates available.

However, giving a rapidly available carbohydrate before surgery is different from providing the nutritional building blocks needed to preserve muscle and rebuild tissues throughout the weeks surrounding surgery.

And importantly, carbohydrate loading should be dictated by the surgeon and anesthesia team—not by a supplement company's marketing schedule or "one-size-fits-all" formula.

What About Creatine? ENROUTE Has It and PureClean Does Not

This is another area where I think honesty produces a better comparison.

Creatine is a legitimate nutritional compound.

There is extensive literature supporting creatine in strength, training adaptation and muscle energetics.

But that does not automatically mean adding creatine makes one surgical nutrition program clinically superior.

In fact, a randomized trial specifically examining creatine supplementation in patients undergoing total knee arthroplasty found that creatine did not improve functional recovery, body composition or strength versus placebo during the study period.

Read the randomized creatine trial after total knee arthroplasty →

More recent reviews suggest creatine may have a more useful role during progressive rehabilitation and resistance loading than during strict inactivity, but the surgical evidence remains mixed.

So yes, there can be a benefit to creatine. No, I would not consider its presence by itself a reason to pay substantially more for a perioperative nutrition program.

The Stronger Orthopedic Signal: Protein and Essential Amino Acids

This is where I pay much closer attention, and so should you.

Protein matters because it provides amino acids, the building blocks of protein!

But the body ultimately builds new proteins from individual amino acids—and nine of those amino acids are considered essential because the body cannot synthesize sufficient amounts on its own.

That is why I do not think the conversation should stop at:

“How many grams of protein are in this whey shake?”

The more useful questions are:

• Which amino acids are being provided?
• How much essential-amino-acid substrate is available and absorbed?
• Is leucine present in an appropriate context?
• When is the amino-acid dose being consumed?
• Is the patient eating enough total protein throughout the day?
• How much muscle is being lost through inactivity while recovery takes place?

The Clinical Research on Essential Amino Acids After Orthopedic Surgery

Unlike many supplement theories, essential amino acids have actually been studied directly in orthopedic surgical patients.

Randomized Knee-Replacement Trial: Dramatically Less Early Muscle Loss

A double-blind, placebo-controlled randomized trial published in the Journal of Clinical Investigation studied 28 older adults undergoing total knee arthroplasty.

Participants received either placebo or 20 grams of essential amino acids twice daily between meals, beginning one week before surgery and continuing for two weeks afterward.

At two weeks after surgery:

• The placebo group had lost approximately 14.3% of quadriceps muscle volume.
• The EAA group had lost approximately 3.4%.

At six weeks:

• The placebo group was down approximately 18.4%.
• The EAA group was down approximately 6.2%.

The researchers also reported better functional mobility outcomes in the EAA group.

Read the randomized EAA total-knee-replacement trial →

A Second Randomized Trial Again Found Less Muscle Atrophy

Another randomized, double-blind, placebo-controlled trial studied 39 adults undergoing total knee replacement.

Participants received 20 grams of EAAs twice daily beginning seven days before surgery and continuing for six weeks after surgery.

At six weeks, quadriceps muscle loss in the operated leg was approximately:

• 8.5% with EAA supplementation
• 13.4% with placebo

Hamstring muscle loss was also significantly lower in the EAA group.

Read the second randomized EAA trial →

2025 Meta-Analysis: 19 Studies and 903 Hip or Knee Arthroplasty Patients

The evidence is no longer limited to one isolated experiment.

A 2025 systematic review and meta-analysis examined 19 studies involving 903 patients undergoing total hip or knee arthroplasty.

The analysis found that perioperative protein and amino-acid supplementation significantly reduced muscle atrophy.

For essential amino acids specifically, the analysis reported significant benefits for preservation of:

• Quadriceps muscle mass: SMD 0.69
• Hamstring muscle mass: SMD 1.04

Strength and functional findings were less consistent, which is important to acknowledge.

Nutrition can help preserve tissue.

It does not replace progressive rehabilitation, loading, mobility or physical therapy.

Read the 2025 systematic review and meta-analysis →

So Is FUNDAMINOS Better Than Whey Protein?

This question needs a more intelligent answer than “EAAs good, whey bad.”

Whey is a legitimate high-quality protein.

It contains all nine essential amino acids and is naturally leucine-rich.

There is substantial research supporting whey protein for stimulating muscle protein synthesis.

The reason I formulated FUNDAMINOS™ is not because intact protein suddenly stopped working.

It is because a dedicated free-form essential-amino-acid formula is a much more targeted tool. It provides 4x the potential to build and repair muscle compared to whey. When what I specifically want is rapid essential-amino-acid availability between meals, around exercise or during periods when appetite and food intake are compromised, choose FUNDAMINOS™!

Research in older adults illustrates this principle.

Studies have shown that relatively small leucine-enriched EAA doses can stimulate muscle protein synthesis to a degree comparable with much larger whey-protein doses under certain experimental conditions.

Read the leucine-enriched EAA versus whey study →

That does not prove FUNDAMINOS is clinically superior to ENROUTE BUILD.

No branded head-to-head trial has tested that.

What it does show is why I prefer separating targeted EAAs from complete dietary protein rather than pretending one generic protein shake has to perform every job.

Dr. Cohen's Nutrition Framework: Signal, Substrate and the Nutritional Environment

My first training was in biomedical engineering at Duke University before I went to medical school.

That background still influences the way I formulate.

I tend to separate biological problems into functions.

For recovery, I think about three primary layers:

1. Target the Essential Amino Acids

FUNDAMINOS™ provides a dedicated blend of the essential amino acids, including leucine, isoleucine and valine.

I use this as the targeted amino-acid component rather than relying solely on whatever EAA dose happens to be contained inside a serving of intact protein.

2. Provide Complete Protein and Collagen-Rich Peptides

PURECLEAN PROTEIN™ uses hydrolyzed beef protein isolate together with collagen peptides.

That gives us complete dietary protein for broad amino-acid nutrition while also providing collagen-rich peptides containing substantial amounts of glycine, proline and other amino acids represented in connective tissue proteins.

I do not view collagen as a substitute for complete protein.

I want both.

3. Build a Foundational Nutritional Environment

CHOCOBERRY BLAST™ adds a completely different layer: concentrated berries, cocoa flavanols, beet juice powder, minerals and botanical phytonutrients.

I would not claim that CHOCOBERRY BLAST itself has been clinically proven to improve surgical outcomes.

That study has not been done.

I include it because I do not believe recovery nutrition should be reduced to protein grams alone.

Food quality and overall nutritional density still matter.

This Is Why PureClean Performance Is Not Just Another ENROUTE

ENROUTE takes a packaged perioperative approach:

Whey-based protein + leucine + creatine + calcium/vitamin D + a separate preoperative carbohydrate/hydration component.

That is a coherent formula.

PureClean Performance takes a different approach:

Complete protein + collagen + a dedicated EAA intervention + whole-food nutritional density.

If the surgical team wants additional carbohydrate loading, use it.

If creatine is appropriate for the individual, it can be added separately.

I do not need to put every possible ingredient into one expensive box in order to believe it has value.

ENROUTE vs. PureClean Performance: Cost and Value

Now this is where the comparison becomes difficult to ignore.

The current ENROUTE four-week program is listed at:

$349

At current PureClean Performance list pricing:

• PURECLEAN PROTEIN™ — $69.95
• FUNDAMINOS™ — $69.95
• CHOCOBERRY BLAST™ — $69.95

One of each totals $209.85 before any bundle or Subscribe & Save discount wher eyou can get up to 30% off.

That is at least $139.15 less than ENROUTE without discounts at current published list prices. Most people get discounts when they shop on PureClean Performance, by the way!

PureClean Performance also currently offers quantity and recurring-order discounts, so the actual checkout price may be lower.

There is one important qualification:

This is not an apples-to-apples serving comparison.

ENROUTE supplies 56 BUILD servings because its protocol calls for two BUILD shakes daily.

PureClean's strategy intentionally does not duplicate that schedule. We are separating complete protein from targeted EAAs rather than simply giving another protein shake twice per day.

PURECLEAN PROTEIN currently contains 20 labeled servings per bag.

If someone wanted enough PURECLEAN PROTEIN for at least one labeled protein serving every day throughout a 28-day window, purchasing two protein bags plus one FUNDAMINOS and one CHOCOBERRY BLAST would total:

$279.80 at current list prices, before additional bundle or subscription savings.

That is still below ENROUTE's current $349 price.

Again, the protocols are different.

The point is not that PureClean gives you exactly the same box for less money. It is that I believe it gives you a more foundational, potent nutritional toolkit.

ENROUTE vs. PureClean Performance: Side-by-Side

Why PURECLEAN PROTEIN?

PURECLEAN PROTEIN™ is dairy free and was designed to provide a complete protein foundation while also supplying collagen-rich peptides.

I use hydrolyzed beef protein rather than whey.

That is not because whey is inherently poor protein.

It is because I wanted a dairy-free complete-protein base that could also provide a substantial collagen-rich component that whey lacks.

Complete protein feeds muscle and the broader body.

Collagen-rich peptides broaden the structural amino-acid profile.

View PURECLEAN PROTEIN™ →

Why FUNDAMINOS?

FUNDAMINOS™ is the part of the PureClean system that I think is particularly relevant to this discussion.

It is plant-based does not require digestion and provides the full essential-amino-acid spectrum rather than simply adding one isolated amino acid to a protein powder.

Leucine matters.

But leucine is a signal.

The body still needs the other essential amino acids to build new protein.

That is why I prefer a complete EAA strategy rather than turning leucine alone into the headline.

And unlike many theoretical supplement claims, essential amino acids have direct randomized clinical research in orthopedic surgical patients.

View FUNDAMINOS™ →

Why CHOCOBERRY BLAST?

Muscle is not the entire organism.

CHOCOBERRY BLAST™ adds concentrated berry, cocoa, beet, mineral and botanical nutrition.

I include it because I want the nutritional strategy surrounding recovery to remain broader than protein powder alone.

It is the whole-food nutritional component of the system.

View CHOCOBERRY BLAST™ →

How I Would Think About Nutrition Before Surgery

Start before the procedure.

Do not wait until appetite is poor, the leg is swollen and several days of inactivity have already occurred.

• Eat adequate total calories.
• Consume adequate complete dietary protein.
• Use PURECLEAN PROTEIN when a convenient protein/collagen source is helpful.
• Use FUNDAMINOS as a targeted EAA strategy according to its labeled instructions and individual needs.
• Use CHOCOBERRY BLAST as a whole-food nutritional layer.
• Continue actual nutrient-dense food.
• Follow the surgeon and anesthesiologist's instructions regarding fasting, clear liquids, supplements and carbohydrate loading.

How I Would Think About Nutrition After Surgery

After surgery, appetite and activity frequently decline simultaneously.

That is exactly the wrong combination for preserving muscle.

My priorities are:

1. Get adequate food in.
2. Maintain complete protein intake.
3. Maintain essential-amino-acid availability.
4. Resume appropriate movement and rehabilitation as quickly as the surgical plan allows.
5. Maintain overall nutrient density rather than living on processed snack foods and protein drinks.

Nutrition gives rehabilitation substrate. Rehabilitation provides the mechanical signal.

You need both.

Who Is Dr. Rick Cohen?

I am Rick Cohen, M.D., physician, biomedical engineer and founder of PureClean Performance.

I graduated summa cum laude in Biomedical Engineering from Duke University before earning my medical degree.

For decades my work has centered on nutrition, human physiology, sports performance, health, recovery and longevity.

I created PureClean Performance because I wanted nutritional formulas I would actually use myself and with my own family.

Learn more about Dr. Rick Cohen, M.D. →

ENROUTE vs. PureClean Performance Summary

I do not think the facts automatically make ENROUTE the better nutritional system.

When I look at the actual orthopedic literature, what gets my attention most is:

• preventing undernutrition;
• maintaining adequate protein intake;
• maintaining essential-amino-acid availability;
• reducing muscle loss during the period of surgical stress and inactivity; and
• getting the patient moving again appropriately.

PureClean wins for me because it gives the patient a more modular nutritional foundation, makes targeted EAAs a central part of the strategy, adds complete protein and collagen rather than relying on one protein source alone, adds a broader whole-food nutritional layer, costs less at current published pricing and remains useful long after the four-week surgical window ends.

ENROUTE's main advantages are convenience and having the preoperative carbohydrate/creatine strategy already packaged into the program.

If your surgical team specifically wants those components, follow their instructions.

But you do not need to confuse convenience with nutritional superiority.

That is the distinction.

Build the PureClean Pre-COVERY Nutrition Foundation

PURECLEAN PROTEIN™

Complete hydrolyzed beef protein + collagen-rich peptides.

Shop PURECLEAN PROTEIN™ →

FUNDAMINOS™

Targeted essential amino acids including leucine, isoleucine and valine.

Shop FUNDAMINOS™ →

CHOCOBERRY BLAST™

Berry, cocoa, beet, mineral and whole-food phytonutrient concentrates.

Shop CHOCOBERRY BLAST™ →

Explore PureClean Strength & Recovery Nutrition →

Frequently Asked Questions About ENROUTE vs. PureClean Performance

Is ENROUTE Surgical Nutrition worth $349?

ENROUTE provides convenience and packages several perioperative nutritional strategies into one four-week program. Its value therefore includes the protocol and convenience—not simply the cost of whey, carbohydrate, creatine and micronutrients themselves.

Whether that convenience is worth $349 depends on the patient.

Is PureClean Performance cheaper than ENROUTE?

At current published list pricing, one PURECLEAN PROTEIN, one FUNDAMINOS and one CHOCOBERRY BLAST total $209.85 before additional PureClean bundle or subscription discounts.

That is $139.15 below ENROUTE's current $349 price.

The protocols and serving counts are not identical, so this should be viewed as a product-system cost comparison rather than a serving-for-serving equivalence.

Is FUNDAMINOS clinically proven to be better than ENROUTE?

No.

No randomized head-to-head clinical trial has compared FUNDAMINOS with ENROUTE.

What has been clinically studied is perioperative essential-amino-acid supplementation itself, including randomized total-knee-arthroplasty trials demonstrating significantly less postoperative muscle atrophy with EAAs than placebo.

Are essential amino acids better than whey?

They perform overlapping but different nutritional roles.

Whey is a high-quality intact protein.

A free-form EAA supplement provides targeted essential amino acids without requiring digestion of an intact protein first.

I prefer using complete protein for broad nutrition and FUNDAMINOS separately when I specifically want a targeted EAA intervention.

Does creatine help after surgery?

Creatine has strong evidence in exercise and resistance training, but surgery-specific evidence is mixed.

A randomized total-knee-arthroplasty study did not find improved functional recovery with perioperative creatine supplementation.

Are preoperative carbohydrates useful?

They can be.

Preoperative carbohydrate loading is part of some ERAS protocols and can influence perioperative insulin resistance and fasting physiology.

However, it is a procedure-specific medical strategy and should follow instructions from the surgical and anesthesia team.

Can I replace ENROUTE's preoperative carbohydrate drink with CHOCOBERRY BLAST?

No.

They serve different purposes.

CHOCOBERRY BLAST is a nutritional whole-food concentrate. A prescribed preoperative carbohydrate drink is a specific perioperative intervention.

Should I start improving nutrition before surgery rather than afterward?

When possible, yes.

Current surgical-nutrition guidelines increasingly emphasize identifying nutritional risk and improving nutritional status before major surgery rather than waiting until the postoperative period.

Selected Clinical Research

1. ESPEN Guideline on Clinical Nutrition in Surgery – 2025 Update.
   PubMed →
2. Peri-operative protein or amino acid supplementation for total joint arthroplasty: systematic review and meta-analysis. 2025. 19 studies, 903 patients.
   Full Text →
3. Essential amino acid supplementation in patients following total knee arthroplasty. Randomized controlled trial.
   PubMed →
4. Essential Amino Acid Supplementation Mitigates Muscle Atrophy After Total Knee Arthroplasty. Randomized, double-blind, placebo-controlled trial.
   PubMed →
5. Different regimens of preoperative carbohydrate loading on insulin resistance: network meta-analysis.
   PubMed →
6. Creatine monohydrate supplementation does not improve functional recovery after total knee arthroplasty.
   PubMed →
7. Effects of leucine-enriched essential amino acids and whey protein on muscle protein synthesis in older adults.
   PubMed →

Medical Note: This article provides general nutritional education and a product comparison. It does not replace individualized medical, surgical or nutritional advice. Patients should follow their surgeon and anesthesiologist regarding fasting, clear liquids, carbohydrate loading, medications, supplements and nutrition surrounding surgery. Patients with kidney disease, liver disease, metabolic disorders or other medical conditions should discuss protein and amino-acid supplementation with their healthcare professional.