• FitProtect supplement bottle, front label.
  • Fitties FitProtect supplement bottle with supplement facts label on a white background
  • Fitties FitProtect supplement bottle with directions on a white background
  • Closeup of Fitties FitProtect on outdoor table
  • Female athlete holding bottle of Fitties FitProtect outdoors
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FitProtect | Ultra-Premium Cellular Antioxidant with MitoPrime® L-Ergothioneine

One ingredient, chosen on purpose. MitoPrime L-ergothioneine for cellular antioxidant support.

$39.00
30 day supply $1.30 per day
*
    • MitoPrime L-ergothioneine, fighting oxidative stress inside your cells
    • Supports cognitive and neurologic health as the years add up
    • Supports maintenance of glutathione levels already in a healthy range, your cells’ own built-in antioxidant defense

FitProtect is a cellular antioxidant built on MitoPrime L-ergothioneine, a rare amino acid your body can’t make that combats oxidative stress throughout the body.

Subscriptions renew automatically at the frequency and price you select until you cancel. Change, skip, or cancel anytime from your account.
FitProtect supplement bottle, front label.
Fitties FitProtect supplement bottle with supplement facts label on a white background
Fitties FitProtect supplement bottle with directions on a white background
Closeup of Fitties FitProtect on outdoor table
Female athlete holding bottle of Fitties FitProtect outdoors

  • Shield icon indicating an antioxidant-related feature of this dietary supplement

    The Antioxidant You Can’t Make

    Your body can't make L-ergothioneine. It comes from food, mostly mushrooms.

  • Brain icon indicating a cognitive-related feature of this dietary supplement

    12.5mg Per Capsule

    One capsule once or twice daily gives 12.5 to 25mg of L-ergothioneine.

  • Gauge icon indicating a glutathione-related feature

    Protection Where It Counts

    It fights oxidative stress inside your cells, supports cognitive health, and supports maintenance of glutathione levels already in a healthy range.

  • Laboratory flask icon indicating dietary supplement formulation and ingredient quality focus

    Not Another Antioxidant Blend

    Most antioxidant formulas pile many ingredients into one capsule. FitProtect is one ingredient, MitoPrime, made by fermentation.
Female athlete holding bottle of Fitties FitProtect outdoors

One Antioxidant, Not a Laundry List.

Here’s the uncomfortable truth about the antioxidant aisle. Most formulas are long ingredient lists. L-ergothioneine is different. Your body has a dedicated transporter for it, and it tends to build up in tissues exposed to oxidative stress (Borodina et al., 2020). Because you can’t produce it and US adults are estimated to get about 1.1 mg a day from food (Beelman et al., 2020), supplementing is a practical way to raise your levels (Cheah et al., 2017), especially since they tend to fall after 60 (Cheah et al., 2016). FitProtect uses MitoPrime to do exactly that, one capsule at a time.

Who FitProtect Is For

Built for people who think about their health in decades, not weeks.

  • Who It’s For

    • Anyone focused on long-term cellular health, cognitive function, and healthy aging
    • People who rarely eat mushrooms, the main food source of L-ergothioneine (Beelman et al., 2020)

  • Who It’s Not For

    • Anyone after a stimulant or a buzz, since a cellular antioxidant is a long game you won’t feel
    • People who already eat a mushroom-heavy diet and may get plenty from food

What’s Inside

One ingredient, because the right one doesn’t need a supporting cast to hide behind.

MitoPrime L-Ergothioneine

A fermentation-made form of L-ergothioneine, the rare antioxidant amino acid your body can’t produce. 12.5mg per capsule.

Formulated to exclude: wheat, gluten, corn, yeast, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners.

Other ingredients include: microcrystalline cellulose, dicalcium phosphate, capsule (hypromellose and water), ascorbyl palmitate, and silica.

What to Expect From FitProtect

A cellular antioxidant is a long game, not a buzz. Here’s the honest version, grounded in the research.

  • Clock icon for the first phase

    From Day 1

    L-ergothioneine has its own transporter that carries it into cells (Borodina et al., 2020). You won’t feel it, and that’s exactly how a cellular antioxidant works.

  • Calendar icon for the second phase

    Weeks 1-4

    In a placebo-controlled study of 45 healthy adults, 5 or 25 mg a day raised blood levels of L-ergothioneine (Cheah et al., 2017). FitProtect gives 12.5 to 25mg a day.

  • Layered blocks icon for the third phase

    Ongoing

    Blood levels of L-ergothioneine tend to fall after 60 (Cheah et al., 2016), so the point is steady daily use. Long-term, that’s consistent cellular antioxidant support.
Closeup of Fitties FitProtect on outdoor table

How to Use FitProtect

  • Take 1 capsule
  • Once or twice daily, with or without food

Every day, one capsule once or twice daily. Any time of day works, with or without a meal.

Pro Tip. If you rarely eat mushrooms, the main food source of L-ergothioneine, FitProtect is an easy way to get it.

How FitProtect Compares

Plenty of antioxidant supplements are long lists of cheap vitamins. FitProtect is one ingredient, 12.5mg of MitoPrime L-ergothioneine for cellular antioxidant support. Not the same category.

L-ergothioneine your body can’t make
Fermentation-made MitoPrime
Supports cognitive health and glutathione levels already in a healthy range
Vegetarian and corn-free, full exclusion list on the label
FitProtect supplement bottle, front label.

FitProtect

FitProtect

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FitProtect

Typical Antioxidant Supplements

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Where FitProtect Fits Your Stack

FitProtect covers cellular defense. Pair it with the foundation and the rest of your long-game lineup.

  • FitNutrients+: the daily vitamin and mineral foundation under everything.
  • FitNeuro: targeted support for cognitive health to go with the cellular angle.
  • FitRenew: cellular support for skin, hair, and the structure underneath.
Find Your Stack

Frequently Asked Questions

What is L-ergothioneine?

L-ergothioneine is a naturally occurring antioxidant amino acid, derived from histidine, that your body can’t produce. It comes from diet, mostly mushrooms (Beelman et al., 2020), and a dedicated transporter concentrates it in cells (Borodina et al., 2020), where it helps combat oxidative stress.

What is MitoPrime?

MitoPrime is a form of L-ergothioneine made through a fermentation-based process. L-ergothioneine is well absorbed and retained. In a placebo-controlled study of 45 healthy adults, 5 or 25 mg a day raised blood levels, and under 4% was excreted in urine (Cheah et al., 2017). FitProtect provides 12.5mg per capsule.

Why supplement if it’s in food?

Your body can’t make L-ergothioneine, and mushrooms are the main dietary source. US adults are estimated to get about 1.1 mg a day, against up to 4.6 mg in Italy (Beelman et al., 2020). Blood levels also tend to fall after 60 (Cheah et al., 2016), and in a study of healthy adults, supplementing raised them (Cheah et al., 2017).

What does FitProtect actually do?

L-ergothioneine provides cellular antioxidant support, helping fight oxidative stress inside your cells. It also supports cognitive and neurologic health and supports maintenance of glutathione levels already in a healthy range.

Will I feel anything from FitProtect?

Probably not, and that’s normal. L-ergothioneine works at the cellular level over time, like most antioxidants, so its value is in long-term cellular support rather than an immediate sensation.

How is FitProtect different from vitamin C or other antioxidants?

L-ergothioneine has its own transporter that carries it into cells (Borodina et al., 2020), and in a study of healthy adults it was largely retained, with under 4% excreted in urine (Cheah et al., 2017). That’s the difference. Your body holds onto it rather than flushing it out.

How much FitProtect should I take?

Take one capsule once or twice daily, providing 12.5 to 25mg, with or without food. If you take medication or have a health condition, check with your healthcare provider first.

Is FitProtect vegetarian, and what does it exclude?

Yes. FitProtect uses a vegetarian capsule. The full exclusion list is on the label.

Can I stack Fitties products together?

Many Fitties products are designed to work together. Check each label so you don't double up on the same ingredient, such as caffeine or magnesium, and talk to your healthcare professional if you take medication. The Stack Builder can suggest a combination for your goals.

How are Fitties products made?

Every Fitties formula is manufactured in a GMP compliant facility. No low-grade shortcuts. Just ultra-premium ingredients, every one listed on the label.

What are the dietary and allergen details for each product?

Each product is different, and each product page lists what that formula is formulated to exclude, word for word from its label. No Fitties formula uses artificial colors. If something doesn't fit your dietary needs, you'll know upfront.

* 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.