About this product

The Healthy Gut Girl Metabolic Smart Stack is designed to support metabolic energy, thyroid-related nutrient foundations, mineral status, and stress-resilient focus without relying on caffeine or harsh stimulants.

With L-Tyrosine, Taurine, Glycine, Vitamin C, Methylated B Vitamins, Magnesium Glycinate, and Trace Minerals, this formula supports the daily systems behind energy production and metabolic resilience.

This is not a stimulant formula or a fat burner. It is a foundational metabolic support stack built around amino acids, minerals, B vitamins, antioxidant support, and thyroid-related trace nutrients like iodine and selenium.

Metabolic is ideal for women who want nourished energy support, mineral replenishment, and a more grounded approach to metabolic wellness.

Suggested use

Take one daily serving as directed on the label. Many people may prefer this stack earlier in the day because it includes L-Tyrosine and thyroid-supportive trace minerals.

Do not exceed the suggested serving unless directed by your healthcare provider.

About monthlees

The supplement industry is built on inflated pricing, confusing labels, and aggressive marketing.

Monthlees exists to fix that.

We believe:

  • Supplements should be clinically dosed
  • Pricing should be transparent
  • Testing should be independent
  • And customers shouldn't pay for influencer commissions or retail margins

Instead of hiding costs inside the product price, we use a simple membership model — so you pay what supplements actually cost to make.

Shipping & returns

• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.

30 Day Money Back Guarantee

Your routine should feel simple, supportive, and worth it. If Metabolic is not a fit for you, contact support@monthlees.com within 30 days and we’ll help make it right.

What's in Metabolic Smart Stack Metabolic Energy + Mineral Support?

The Healthy Gut Girl Metabolic Smart Stack combines Tyrosine, Taurine, Glycine, Vitamin C, Methylated B Vitamins, Magnesium Glycinate, and Trace Minerals to support metabolic energy, thyroid-nutrient foundations, mineral status, and stress-resilient focus.

It is designed for women who want nourished energy support without caffeine, harsh stimulants, or fat-burner positioning.

  • L-Tyrosine 500 mg for catecholamine pathway support
  • Taurine 800 mg and Glycine 850 mg for cellular and nervous-system balance
  • Vitamin C 1,000 mg for antioxidant support
  • Methylated B Vitamins for energy metabolism and methylation support
  • Magnesium Glycinate plus Trace Minerals for metabolic and thyroid-nutrient foundations

Free of

  • Artificial colors
  • Artificial flavors
  • Added sugar
  • Caffeine
  • Harsh stimulants
  • Hidden proprietary blends

Diet friendly

  • Metabolic support routines
  • Thyroid-nutrient support routines
  • Non-stimulant energy routines
  • Mineral-support routines
  • Healthy Gut Girl Smart Stack systems

Thyroid-supportive nutrients for real metabolic energy

Nourish your thyroid-metabolism foundation. The Healthy Gut Girl Metabolic Smart Stack brings together thyroid-supportive nutrients, amino acids, methylated B vitamins, minerals, and antioxidant support to help your body create steadier energy from the inside out.

  • Tyrosine

    Tyrosine

    An amino acid precursor to catecholamines, included for stress-resilient focus and thyroid-nutrient support.

  • Methylated B Vitamins

    Methylated B Vitamins

    Active-form methylated B vitamins support energy metabolism, methylation, and cellular function.

  • Trace Minerals

    Trace Minerals

    Iodine, Selenium, Zinc, Copper, Manganese, Chromium, Potassium, Boron, and Vanadium help support metabolic and mineral foundations.

  • Taurine + Glycine

    Taurine + Glycine

    Amino acids that support nervous-system balance, mitochondrial health, cellular hydration, and daily resilience.

How it works

  1. Fuel

    Step 1: Fuel

    Take your daily serving to provide amino acids, B vitamins, magnesium, vitamin C, and trace minerals.

  2. Activate

    Step 2: Activate

    Tyrosine, iodine, selenium, B vitamins, magnesium, and minerals support key pathways involved in thyroid nutrients, catecholamines, and cellular energy.

  3. Sustain

    Step 3: Sustain

    Taurine, Glycine, Magnesium, and Vitamin C help support daily resilience, antioxidant status, nervous-system balance, and metabolic wellness.

Supplement facts

Metabolic energy — amino acids, minerals, and methylated B-vitamins

This stack supports the nutrient systems behind metabolism: catecholamines, thyroid-related nutrients, cellular energy cofactors, antioxidant status, and mineral balance.

L-Tyrosine
500 mg
† Daily Value not established.
Vitamin B1
Benfotiamine
25 mg
2,083%
Riboflavin
Riboflavin-5-Phosphate
20 mg
1,538%
Vitamin B3
Niacinamide + Nicotinic Acid
75 mg
469%
Vitamin B6
Pyridoxal-5-Phosphate
10 mg
588%
Folate
5-Methyltetrahydrofolate Calcium
400 mcg DFE
100%
Biotin
300 mcg
1,000%
Pantothenic Acid
D-Calcium Pantothenate
50 mg
1,000%
Magnesium Glycinate
20% Magnesium
133 mg
Confirm final elemental magnesium value on label before publishing.
Iodine
Potassium Iodide
200 mcg
133%
Selenium
L-Selenomethionine
200 mcg
364%
Zinc
30 mg
273%
People taking thyroid medication or managing thyroid disease should consult a healthcare professional before use.
Copper
2 mg
222%
Manganese
4 mg
174%
Chromium
250 mcg
714%
Potassium
Potassium Chloride
100 mg
2%
Boron
Boron Citrate
200 mcg
Vanadium
Vanadium Bisglycinate
150 mcg
† Daily Value not established.
L-Taurine
800 mg
L-Glycine
850 mg
† Daily Value not established.
Vitamin C
Ascorbic Acid
1,000 mg
1,111%
Percent Daily Value based on a 2,000 calorie diet.
Research-backed supplement formula visual
Evidence-based ingredients

The science behind the ingredients

The Healthy Gut Girl Metabolic Smart Stack is built around research-supported nutrient systems involved in stress-resilient focus, cellular energy metabolism, thyroid hormone pathways, mineral status, mitochondrial function, and antioxidant defense. Tyrosine has evidence for supporting cognitive performance in short-term stressful or cognitively demanding situations. B vitamins and magnesium are core energy-metabolism cofactors. Iodine is an essential component of thyroid hormones that regulate metabolic activity. Taurine is included for mitochondrial and cellular support.
0 mg
Caffeine per serving
500 mg
Tyrosine per serving
200 mcg
Iodine per serving
Review L-Tyrosine

Tyrosine and cognitive performance under stress

A review concluded that tyrosine may enhance cognitive performance, particularly in short-term stressful or cognitively demanding situations. This supports Metabolic’s stress-resilient focus positioning without making stimulant-style claims.
Review B Vitamins, Vitamin C, Magnesium, Zinc

Micronutrients and energy, fatigue, and cognition

A review highlights the roles of B vitamins, Vitamin C, Magnesium, and Zinc in molecular and cellular processes related to energy, cognition, and fatigue when nutrient status is not adequate. This supports Metabolic’s foundational energy-metabolism positioning.
NIH fact sheet Iodine

Iodine and thyroid hormones

NIH states that iodine is an essential component of thyroid hormones T4 and T3, which regulate many important biochemical reactions. This supports the thyroid-nutrient foundation angle while requiring clear caution for people with thyroid conditions or thyroid medication.
Review Taurine

Taurine and mitochondrial health

A review describes taurine’s role in mitochondrial biology and cellular function. This supports Taurine’s role in a formula focused on metabolic resilience, mitochondrial support, and nervous-system balance.
Review B Vitamins

B vitamins and mitochondrial function

A review describes B vitamins as coenzymes for enzymes essential to cell function and emphasizes their role in maintaining mitochondrial function. This supports Metabolic’s B-vitamin energy-cofactor story.

Compare The Healthy Gut Girl Metabolic Smart Stack

How The Healthy Gut Girl Metabolic Smart Stack stacks up against typical energy and metabolism products

Many metabolism products rely on caffeine, aggressive stimulant blends, or fat-burners. The Healthy Gut Girl Metabolic Smart Stack takes a nutrient-first approach with amino acids, methylated B vitamins, magnesium, vitamin C, and trace minerals.
How The Healthy Gut Girl Metabolic Smart Stack stacks up against typical energy and metabolism products
Typical metabolism supplement

Typical metabolism supplement

Energy approach
Non-stimulant nutrient support
Often caffeine or stimulant based
Focus support
Tyrosine 500 mg
Often stimulant-only focus
Thyroid-nutrient foundation
Iodine, Selenium, Zinc, and Tyrosine
Often missing or overly aggressive
Cellular energy cofactors
Methylated B Vitamins + Magnesium
Often not comprehensive
Resilience layer
Taurine + Glycine + Vitamin C
Often not included
Formula philosophy
Nourished metabolic support
Usually fat-burner positioning

Insider access to the world's best labs & supplement manufacturers.

Membership allows us to sell products for a fraction of the typical industry retail price. Think of it as an insider access pass to the warehouses of the supplement industry.


Monthlees members don't pay for:

  • Middlemen
  • Marketing & influencer costs
  • Retailer markups
  • Distributor margins

$$$

Retailer markups
Middleman's cut
Cost of manufacture

What you'll pay at traditional retail

$$

Monthlees guest

What you'll pay as a guest

$

Monthlees member

What you'll pay as a Monthlees member

The honest math on building a metabolic support stack

To recreate Metabolic separately, you would typically need multiple products: Tyrosine, Taurine, Glycine, Vitamin C, a methylated B-complex, Magnesium Glycinate, and a trace mineral formula. Metabolic puts the core stack into one streamlined daily system.
Half the cost
Treatment Other guys Monthlees
Typical separate-product stack Tyrosine + Taurine + Glycine + Vitamin C + B-complex + Magnesium + Trace Minerals purchased separately Multiple bottles / higher monthly cost One Smart Stack
Monthlees member price Monthlees members get member-only discounts on all products in the catalog 149.95 $84.95

Start your monthlees health journey with complete support

Your membership gives you access to better pricing, personalized guidance, and everything you need to build a healthy supplement & personal care routine that effortlessly fits your life.

  • Unlock member pricing of 50-80% off on every product
  • Get your personalized Starter Routine Kit
  • Use flexible subscriptions to save on repeat orders
  • Manage everything easily from your Monthlees account
  • 30-day money back guarantee on all product purchases
  • Automatic savings applied at checkout
  • 100% flexible. Update, pause, or cancel anytime
Member trust

Confidence built into every order

From clear member pricing to flexible subscriptions and responsible product standards, Monthlees is built to help you shop with confidence — without inflated markups, hidden tiers, or checkout surprises.

  • GMP Certified Facilities
  • FDA Compliant Facilities
  • Third party tested
  • Transparent product pricing

    Every product shows clear pricing for guests and members, so you can compare your savings before you buy.

  • Member savings applied automatically

    When you’re signed in as a member, your eligible discounts are applied automatically at checkout.

  • Subscriptions that stay flexible. Cancel anytime.

    Start, pause, skip, or adjust product subscriptions from your account — without hidden hoops or confusing rules.

Frequently asked questions

Everything you need to know about Monthlees member pricing, subscriptions, and how checkout works.

Is The Healthy Gut Girl Metabolic Smart Stack a stimulant?
No. The Healthy Gut Girl Metabolic Smart Stack does not rely on caffeine or stimulant herbs. It supports metabolic energy through amino acids, B vitamins, magnesium, vitamin C, and trace minerals.
Why does it include iodine?
Iodine is an essential component of thyroid hormones, which are closely connected to metabolic activity. Because iodine may not be appropriate for everyone, people with thyroid conditions or thyroid medication should consult a healthcare provider before use.
When should I take The Healthy Gut Girl Metabolic Smart Stack?
Many people may prefer it earlier in the day because it includes Tyrosine and thyroid-supportive trace minerals. Follow the label directions and avoid exceeding the suggested serving.

Why I created monthlees...

When I was 19 years old, I was diagnosed with a brain tumor. That experience forced me to start asking deeper questions about how the human body actually works.

Over the next 18 months, I immersed myself in studying health, nutrition, and neuroscience — eventually earning my degree in Neuroscience from Duke University. Along the way, I discovered something powerful: the body is incredibly resilient & inherently self-healing when it’s given the right support.

Strategic nutrition and supplementation became a major part of my own health journey. And over the last two decades, I’ve devoted my life to helping millions of people around the world take a more proactive role in their health.

That experience completely changed how I thought about health — and ultimately shaped the way Monthlees was built.

I created Monthlees because I was tired of seeing people pay premium prices for supplements that were under-dosed, over-marketed, and difficult to trust.

My goal is simple: build the kind of brand I would want for myself and my family — with better ingredients, transparent formulas, meaningful dosages, and a business model built on long-term trust.

— Chris Walker, Founder of Monthlees

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