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Brain fog is probably something we can all relate to at one time or another. Whether it’s that Monday afternoon energy lag, or the inability to focus when we really need to, I’m sure we can all benefit from brain fog cures. Let’s talk about brain fog causes as well as how to cure them the natural way.

brain fog cure smoothie
Table of Contents
  1. What Causes Brain Fog?
  2. Simple Brain Fog Cures
  3. Best Foods for Brain Energy
  4. FAQs
  5. Recipes to Boost Your Brain Power
  6. Brain Fog Cure Smoothie Recipe

What Causes Brain Fog?

While we’re all different, there are a few brain fog causes that I think are fairly common: Stress, not enough sleep, diet, and changes in hormones.

If you’re anything like me, these common causes are usually linked to each other: When I’m not sleeping well, I don’t eat well. When my hormones are in flux, I often don’t eat well or sleep. Stress can cause me to not sleep as well as rely on processed foods… the list goes on. How can I easily cure brain fog? Grab your blender, then keep on reading!

Simple Brain Fog Cures

Now that you know where that brain fog started, how can you fix it?

Get outside– vitamin D is no joke; getting outside doesn’t just boost your mood, it can also clear that fog.

Exercise regularly– Whether it’s a walk on your lunch break, a bike ride to your next activity instead of driving, starting a small garden… whatever it takes to get you moving. I may work from home, but I still need to schedule time to be outside every day.

Diet– By now you should know I’m a firm advocate of a plant-based diet. This isn’t vegan or restrictive… I eat meat! Yet I do believe in the power of plants, and I know that Americans don’t get enough plants in their diet. Try a meatless Monday, take your kids grocery shopping then let them pick a new fruit or veggie to try, grow herbs to spice up that dinner plate.

Brain fog cures don’t need to be hard, complicated, or confusing. Instead, keep it simple and something you can easily do every day, like drinking a green smoothie, walking for 20 minutes or eating a whole food, plant-based recipe.

Best Foods for Brain Energy

Be sure to reach for the following foods when fighting mental fatigue:

AvocadoDark chocolatePomegranateSpinach
BlueberriesDark leafy greensProbiotic-rich foodsStrawberries
CocoaGrapesRed onionTurmeric
CeleryHemp heartsRosemaryWalnuts
Chia seedsNutritional YeastSalmonWater
brain fog causes + cures


What is causing my brain fog?

The biggest brain fog causes are stress, lack of sleep, hormone changes, and diet.

What does brain fog feel like?

You might forget what you’re doing mid task, take longer than normal to complete normal tasks, feel tired while trying to get something done, get distracted often.

How do you get rid of brain fog fast?

Regular exercise, get consistent sleep, eat well and find activities that bring you joy.

Recipes to Boost Your Brain Power

If brain fog is a current issue for you, or you know you need your brain to be on full power in the coming days, then try these delicious recipes:

I’m serious about giving my brain the best boost I can, so I continue to make recipes that give me the best shot. The smoothie recipe below is super simple as well as effective at clearing up the fog.

Coupled with some of the other simple cures above, this brain fog smoothie will help you stay on the top of your game. Give this smoothie a blend, then let me know how you feel with a rating + review!

5 from 5 votes

Brain Fog Cure Smoothie

When mental fatigue fogs your brain, turn to blueberries and raspberries in this Brain Fog Cure smoothie recipe These brain berries keep debris from polluting the brain- effectively eliminating mental fog.
Prep: 5 minutes
Total: 5 minutes
Author: Jen Hansard
Course: Smoothie
Cuisine: Plant-Based
Serves: 1 smoothie


  • 1 cup spinach
  • 1 cup green tea brewed and chilled
  • ¾ cups raspberries frozen
  • ¾ cups blueberries frozen
  • 1 serving homemade protein powder optional
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  •  Blend spinach and green tea together until smooth.
  • Add remaining ingredients and blend again.


  • Use at least 1 frozen fruit for a refreshingly cool smoothie.
  • Make sure the tea is cooled before adding to your blender container; not all blender containers are heat-proof.
  • Adding a homemade protein powder can boost this smoothie with protein + healthy fat to keep you full longer.


Calories: 119kcal, Carbohydrates: 29g, Protein: 3g, Fat: 1g, Saturated Fat: 1g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 1g, Sodium: 33mg, Potassium: 476mg, Fiber: 9g, Sugar: 15g, Vitamin A: 2903IU, Vitamin C: 43mg, Calcium: 59mg, Iron: 2mg
Tried this recipe? Show me!Mention @SimpleGreenSmoothies or tag #SimpleGreenSmoothies!

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    1. Absolutely, freezing your smoothie is a great way to have them ready when you need them!

  1. I’m I able to Substitute green or black tea with something else can’t drink tea.

    1. 5 stars
      I sub Green Tea Macha and it works great. I also add MCT-Oil sometimes for a real boost

      1. MCT oil is a great add-in here Ron. Thanks for sharing!

    1. 5 stars
      Hey Anne,

      You can substitute black tea for green tea. It is a great substitute for green tea!

      Hope you enjoy it!

  2. Can’t digest blueberries; what else to substitute in recipe to fight mental fatigue?

    1. Hi Greta,

      Blueberries + your body not friends? No worries! Swap in another berry you love! Strawberries are a great option in this recipe + will keep your mind sharp!