Functional Fuel Complete - Thyroid Friendly Protein Powder

Functional Fuel Complete – Thyroid Friendly Protein Powder for Hypothyroidism & Hashimoto’s


  • Two delicious flavors: French Vanilla & Dutch Chocolate
  • Dairy-free, Soy-free, Gluten-free Thyroid Friendly Protein Powder designed specifically for Thyroid patients.
  • Contains a protein blend which consists of pea protein concentrate, pea protein isolate, rice protein, inulin, and MCT.
  • May help support healthy metabolism and body composition.*
  • Supports Gastrointestinal health.*
  • Contains micronutrients including activated B Vitamins, Trace Minerals, and high potency vitamins.
  • 14 Day Supply in each container.

free shipping, 60 day guarantee, manufactured in USA


Earn up to 225 Points.


Protein Powder for Hypothyroidism & Hashimoto’s Thyroiditis

Functional Fuel Complete is the ideal protein powder for those who have thyroid-related issues including hypothyroidism and Hashimoto’s.


Because it contains a balanced blend of amino acids and protein from sources which do not include soy, dairy or gluten.

It’s not uncommon for protein powders to contain protein sourced from a dairy which can cause intestinal and immune issues in those who have thyroid-related problems.

This can be avoided with a high-quality, plant-based protein powder.

Beyond the typical protein powder, Functional Fuel also contains 22 vitamins and minerals as well as other additions which help your body absorb and utilize protein including Artinia and Aminogen.

This balanced combination has been used in hundreds of thyroid patients and has worked well to help replete vital nutrients, improve energy and help with weight loss.

Protein Powder is Important for Your Thyroid & Metabolism

If you are a thyroid patient then you know the reality of feeling fatigued, having low energy and gaining weight.

These symptoms are all too common among thyroid patients.

But what actually causes them?

While thyroid hormone certainly plays an important role, the role of diet and nutrient status should not be overlooked.

An unbalanced (or poor) diet can exacerbate your thyroid condition and lead to nutrient deficiencies.

That’s where functional food and protein powder step in:

Functional food is used to describe food which has a purpose beyond its function as a food.

It helps improve the function of your body and in this case, functional fuel is helping to provide your body with nutrients and helping to improve your thyroid.

It does this through its blend of protein and its blend of nutrients and trace minerals.

When you use Functional Fuel you can be sure that you are getting at least 1 amazing meal per day which is replete with nutrients, vitamins, protein and other ingredients that your body and your thyroid need to function day-to-day.

But high-quality protein powder does more than just provide your body with nutrients.

Protein, as a macronutrient, also helps your body to manage your appetite and build your muscle mass.

That means using protein powder can potentially help curb your cravings for unhealthy foods while providing your body with essential building blocks to create more muscle mass.

It’s a win-win.

But, like other food groups, the quality and the source of the protein matters!

Whey vs Plant-Based Protein Powder

Most commercial protein powders are created used whey protein or whey isolate.

These protein powders use dairy as their source, the whey component.

This may not be a problem for most people, but thyroid patients shouldn’t be considered “most patients”.

And why is that?

It’s because your thyroid helps to regulate your immune system, produce stomach acid and controls the movement of your intestinal tract.

That means, if you have thyroid disease, you are more susceptible to gastrointestinal issues such as IBS, SIBO, acid reflux and poor absorption.

It also means that you need to take care of the quality and type of food that you ingest! And this includes protein powders.

Plant-based protein powders tend to be absorbed more easily, and are well tolerated when compared to dairy-based protein powders.

This is especially true for those with thyroid-related conditions.

The moral of the story?

As a thyroid patient, you need to find a high-quality plant-based protein powder that will NOT exacerbate existing intestinal issues and one that will be easily absorbed and provide your body with the nutrients that you need to function at 100%.

Functional Fuel fits the bill on all levels.

How Much is Too Much Protein

While protein is essential for optimal performance, you also want to ensure that you are not getting too much.

The ideal amount of protein is a sufficient amount to regulate your appetite (help reduce your cravings) while providing your body enough to maintain your muscle mass and help promote new muscle growth.

Too much protein can actually make some hormone imbalances worse such as leptin resistance and insulin resistance.

Because of this, Functional Fuel contains the ideal amount of protein at 15 grams per serving (or about 7.5grams per half serving).

This amount is designed to help keep you full and maintain muscle mass without causing other metabolic problems.

Plant protein is also readily absorbed and utilized quickly when compared to other types of proteins.

Thyroid Friendly Blends & Ingredients

Thyroid Conversion & Thyroid Function Blend*:

  • Zinc -> Zinc is a trace mineral which helps your thyroid convert T4 into the active T3 thyroid hormone. It also plays an important role in balancing your immune system.
  • Selenium -> Selenium is an important
  • Iodine -> Iodine forms the backbone of thyroid hormone and is only found from dietary sources. Functional Fuel Complete contains iodine balanced with bost Zinc and Selenium to prevent problems associated with isolated iodine supplementation. Each serving contains 25mcg of Iodine.
  • Vitamin A – Vitamin A is a fat-soluble vitamin which is important for thyroid cell signaling and thyroid conversion.

Absorption Blend*:

  • Aminogen from Aspergillus niger and aspergillus oryzae -> Aminogen is a fungal protease enzyme which helps the body digest and breakdown proteins, improve digestion and reduce inflammation.

Immune Boosting Blend*:

  • Artinia -> This chitin glucan may help to improve your immune system when consumed by “educating your immune system”.
  • Zinc

Activated B Vitamin Blend*: These B vitamins are activated and safe to use with MTHFR gene defects

  • Riboflavin as 5′-phosphate sodium
  • Niacin as niacinamide
  • Vitamin B6 as pyridoxal 5′-phosphate
  • Vitamin B12 as methylcobalamin
  • Pantothenic acid as d-calcium pantothenate
  • Thiamin as thiamine mononitrate

Trace Mineral Blend:

  • Magnesium
  • Zinc
  • Selenium
  • Manganese
  • Chromium
  • Molybdenum
  • Sodium
  • Potassium

Additional Ingredients:

Other Ingredients: VegaPro™ (Dr. Westin Childs’s proprietary blend of pea protein isolate, glycine, taurine, rice protein concentrate, and L-glutamine), dried cane syrup, inulin (from chicory), sunflower oil, natural flavors (no MSG), medium-chain triglyceride oil, Aminogen® fungal proteases, cellulose gum, xanthan gum, guar gum, silica, and stevia leaf extract.

Nutrition Facts:

  • Calories 150
  • Total Fat 5g
    • Saturated Fat 2g
  • Total Carbohydrate 14g
    • Dietary Fiber 7g
    • Sugars 5g
  • Protein 15g

How to Use

Functional Fuel is easy to use and easy to blend in almost any liquid.

You can use it in the following ways:

  • Add 1 to 1/2 serving to a morning smoothie
  • Mix in cold water or with any liquid
  • Add to recipes to enhance nutrient density


1.) What Flavor is the Protein Powder?

Functional Fuel complete comes in French Vanilla.

We are looking to add more flavors so if you have any suggestions please let us know!

2.) Can I use this protein powder with your other Supplements and with my Thyroid Medication?


Functional fuel can be used with all of our other supplements designed to help your thyroid and it can be used in conjunction with your thyroid medication.

We do NOT recommend that you take this protein powder at the same time as your medication but it can be safely taken a few hours either before or after.

3.) How does this compare to your other protein powders (DETOX and ENERGIZE)?

Each of my protein powders contains the same basic ingredients (including the same plant-based powder and basic vitamins/nutrients) but differ in their additional ingredients which help differentiate how they are to be used.

  • Functional Fuel COMPLETE – The complete protein powder is an everyday use protein powder which contains high-quality plant-based protein powder.
  • Functional Fuel ENERGIZE – ENERGIZE contains all of the same ingredients in Functional Fuel COMPLETE but also contains additional ingredients such as natural sources of caffeine (coffee fruit extract), bovine IgG, arabinogalactan, and glucoraphanin (ideal as a pre-workout protein powder, a replacement for coffee/energy drinks, or as a weight loss protein powder).
  • Functional Fuel DETOX – DETOX contains all of the ingredients, vitamins, and nutrients that COMPLETE has but also contains several important nutrients which help promote detoxification pathways including MSM, turmeric, ginger, quercetin, betaine, watercress, and NAC.

An easy way to determine which supplement to start with is as follows:

  • Use Complete if: you want an everyday healthy protein powder, you want a clean protein powder which is plant-based and does not contain dairy, gluten, or soy, you are interested in weight loss.
  • Use ENERGIZE if: weight loss if your primary goal, you want a healthy and clean pre-workout protein powder, you need a coffee replacement, you want a clean and sustained source of energy, you have gut-related issues.
  • Use DETOX if: you have inflammation or autoimmune disease, you suffer from leaky gut or other intestinal issues, want to clean our your system or use detox to jump start your health or weight loss routine, know that you need to get rid of chemicals/toxins or other endocrine disruptors, or just want a healthy clean protein powder.

4.) Is this protein powder Vegan?


And in addition to being vegan, it is also free of wheat, gluten, soy protein, dairy products, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners and artificial preservatives.

We aim to make our products as CLEAN as possible so that you can obtain all of the benefits without any negative consequences.

5.) How is Functional Fuel Complete Sweetened?

Functional Fuel Complete is sweetened with dried cane syrup and stevia leaf extract (a small amount of both).

6.) How should I use this protein powder?

We recommend that you use 1-2 scoops every day.

Functional fuel can be used short term or long-term without any issue.

7.) Will this protein powder help me lose weight?

While this protein powder is not specifically designed to help with weight loss it may be a potential side effect seen in many thyroid patients.

If you are primarily interested in weight loss then you should look at my other protein powders which contain additional ingredients to help with weight management (Functional Fuel DETOX and Functional Fuel ENERGIZE).

8.) How does shipping work?

All product orders to the United States receive free shipping. We ship out within 1 day of your order (unless you order on the weekend) and it takes approximately 1-3 days to reach the destination depending on how far you live away from Arizona.

We offer international shipping as well! You can calculate the price of shipping at the checkout page (we do not mark up the cost of shipping) and currently we ship to all countries.

9.) What is your Return/Refund Policy?

All of my products come with a 60-day money-back guarantee. I’m confident that my products will work for you but, in case they don’t, for whatever reason, you can return them for a full refund within 60 days. It makes purchasing them a no-brainer!

You can find more information about our return and refund policy by clicking here.

10.) Are your supplements regulated for quality?

Yep! Every single batch of supplements undergoes third-party testing for heavy metals, pathogens, ingredient profile, and purity. In addition, my products are produced in a GMP-compliant facility in the United States.

11.) What if I have other questions?

Don’t hesitate to reach out! Please email us at and we will do our best to get back to you within a day or so! You can also call us here: (480) 331-9431.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

**Results may vary.

Questions about our quality standards? Please see this article for more information.

Additional information

Weight 2 lbs
Dimensions 4.75 × 5 × 7.25 in

Dutch Chocolate, French Vanilla

Customer Reviews

Based on 202 reviews
J. L.
Finally found the perfect protein powder!

I’ve used a specific brand of protein powder for almost 5 years straight it included ingredients that I’ve learned was actually doing more harm than good. This powder is perfect!! It takes great and is so easy to shake or blend, I’m so glad I found it!

Christina A.
awesome thyroid support!

I highly recommend the the Thyroid Glandular +, Thyroid Adrenal Complex and the T3 Booster! I have hypo thyroid and noticed I was experiencing fatigue, headaches, weight gain, and brain fog. After switching my thyroid brand meds and incorporating Dr. Childs supplements, I feel so much better! I did not like the protein power or the probiotics, that's the reason for the 4 stars. Other then that I love these sups!

Roxanne C.

The chocolate protein powder had a great taste

Myrna W.
1 x Functional Fuel Complete - Thyroid Friendly Protein Powder for Hypothyroidism & Hashimoto's

Thank you! Your products are helping me tremendously!! I have more good days than bad!!

Protein powder

I love this protein powder!

functional fuel complete bottle image high res
Functional Fuel Complete – Thyroid Friendly Protein Powder for Hypothyroidism & Hashimoto’s
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