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10 Best Foods to Eat Before and After Fasting, According to Dave Asprey

The “Father of Biohacking,” reveals what to eat prior to and after a fast.

Before you go on a fast – whether for religious reasons or to try and lose weight fast – you should always plan ahead in terms of what you should eat before and after. Why? Prior to fasting, you want to give your body the nutrients it needs to sustain the fast. And, when breaking the fast, you want to ease your digestive system back into action. Here are the best foods to eat before and after fasting, according to Dave Asprey, health science entrepreneur, bestselling author, and the "Father of Biohacking."

Before Fasting: High Quality Protein


"Before a long period of fasting, you'll want to choose low-toxin and high-nutrient foods like the ones I recommend on The Bulletproof diet," Asprey tells The Body Network. This includes high quality proteins like grass-fed meat. 

Related: This Is How I Lost 100 Pounds in 4 Months

Low Toxin Veggies

red leaf lettuce

He also recommends "low toxin vegetables like arugula or red lettuce," he tells us. 

Low-Toxin Starches and Carbs

Milk and honey on the wooden table closeup

Next, he recommends preparing for your fast with low-toxin starches and carb sources such as white rice, raw honey, and fruit. 

High Quality Fats


"You'll also want to include high-quality fats like C8 MCT oil and butter," he says. 

An Example of a Great Pre-Fast Meal

Grilled top sirloin or cup rump beef meat steak on marble board. Black background. Top view

Asprey offers an "example meal," recommending a grass-fed steak (high-quality protein), a cup of blueberries, mango (high quality carbs), and steamed broccoli topped with ghee (low-toxin veggies and healthy fats)" he says. 

Breaking Fast: Salt Water


"When breaking a fast," Asprey recommends starting with water with added salt. "Water with salt helps hydrate your body," he says. 

Remineralized Coffee

Man in the kitchen pouring a mug of hot filtered coffee from a glass pot. Having breakfast in the morning

"Coffee, specifically remineralized coffee like Danger Coffee, also assists in replenishing your body with electrolytes that you have lost during a longer fast," says Asprey. 

Low-Toxin, High Nutrient Food

Dave Asprey/Facebook

"Just as you'd want to choose low-toxin and high-nutrient foods before starting your fast, you'll also want to follow this guideline when breaking your fast," Asprey continues.  

An Example of a Great Post-Fast Meal

Salmon fillet. Slices of fresh raw salmon fish on ice

An example "breakfast" meal "is a wild caught salmon filet (high quality protein), white rice (starch) topped with grass-fed butter (healthy fat), with an arugula salad dressed with a mixture of MCT oil and apple cider vinegar (healthy fats and low-toxin veggies)," he says. 

Take Digestive Enzymes and Betaine HCI

close-up of super enzymes capsules. dietary concept. dietary supplement topview.

He also recommends a few supplements. "Because your digestion may take a while to kick back into full gear after a long fast, it's best to take digestive enzymes and betaine HCl with your meal to enhance absorption."

💪🔥Body Booster: Prior to and after a fast, try to eat low-toxin, high nutrient food.

Leah Groth
Leah Groth has decades of experience covering all things health, wellness and fitness related. Read more
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