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Vegan Intermittent-Fasting Shake

71 reviews

Fabfast has a perfectly balanced nutritional profile with 15 grams each of protein, fat and carbs. It provides just the right amount of nutrients to keep your energy up, hunger at bay and cleanse while you fast.

 ✓  Perfect for weight loss, cleansing and detox

 ✓  Plant-based balanced nutritional mix

 ✓  Natural Vanilla Butterscotch flavor


90-day money-back guarantee

In the box:

8 sachets of Fabfast that, when taken two consecutive days a week, will last you 4 weeks.


If you’re not satisfied with your purchase at any time, we’ll give you a full refund.


If it's your first time purchasing from us, you do not need to return the product. Otherwise, the product must be sealed and unopened to get a refund.

100% Vegan

100% Vegan

Gluten Free

Gluten Free

Dairy Free

Dairy Free



"This is my second week and day 4 fasting with these shakes and can just say I'm loving the taste and I'm also feeling so good!"

- Cody, Verified Customer

Fabfast will help you

Easier fasting

Make IF easier

Every serving contains just the right amount of calories and macronutrients to help keep hunger at bay and preserve lean muscle during your fast

Lose weight

Lose weight, detox, feel amazing

Unique ingredients help with fat burning and appetite control, soothe your tummy, provide caffeine-free energy, and amplify the cleansing and detox benefits of your fast


Get the greens you need

FabFast helps you green up with two USDA-based serving of organic, leafy greens-the type of veggie most strongly linked to long-term health


Vegan MCTs

Vegan MCTs

Enhance fat burning and appetite control

Organic Raw Cacao Bean

Organic Raw Cacao Bean

Provides feel-good, caffeine-free energy

Organic Leafy Greens

Organic Leafy Greens

Antioxidants, fiber, vitamins, minerals and amino acids

Organic Plant Protein Blend

Organic Plant Protein Blend

Aids in the preservation of lean muscle during your fast

Organic and Ancient Grains

Organic and Ancient Grains

Soothe your tummy

Vegan Cleansing Blend

Vegan Cleansing Blend

Enhance the cleansing and detox benefits of your fast

B Vitamins

B Vitamins

Help your metabolism run full steam ahead

Fabfast is super easy to use

You can use Fabfast as a healthy meal replacement to keep hunger at bay, or as part of any intermittent fasting routine. Here's our favorite:

Two consecutive days per week, drink a Fabfast shake in the morning on an empty stomach, then fast 8-12 hours before eating a healthy, reasonably sized dinner. Prepare each shake by mixing the contents of 1 sachet of Fabfast with 10 oz of water in a blender or shaker cup. Add ice if desired.

1 sachet

Drink 1 sachet

2 days a week

2 days a week

fast 8-12 hours

fast 8-12 hours

Use Fabfast

Customer reviews

Customer Reviews
4.3 Based on 71 Reviews
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Filter Reviews:
Nina M.
United States United States
I recommend this product
I'm a Fan

Love this product! The taste is amazing and it keeps me full during the day. I originally tried this because it was recommended to me on Amazon. I went to reorder and they were out. The shipping on your direct site was quicker and the pricing was so much better! Great results with this product.

Pam B.
Love it

I love the taste and keeeps me full

Love it

Great for people doing intermittent fasting, it helped me with my weight loss.

Karen S.
Great Shake!

I love FabFast! The flavor is delicious! It mixes easily (I use vanilla almond milk). It fills me up so I don�t crave sweets. I have been intermittent fasting for a couple years now. I usually eat between 8 a.m. and 4 p.m. I use FabFast in the morning to help get my day off to a healthy start.

natalie m.
I love Califina Fabfast!

So,I am usually always starving about 2 hours after breakfast. And I eat real breakfast food like bacon eggs grits and toast. With a coffee. So i am so pleasantly surprised that fabfast holds me until lunch. I take my first drink around 8 am and I am good with an apple and water around 2:30 pm until dinner. I am so happy with this product, That I am already on my second box. I highly recommend giving fabfast a try its worth it. Im loosing weight like nobodies business and I actually like the products taste. Im super picky about flavor no matter what the product promised to do for weight loss. It actually doesn't taste bad. This is my second Califina product. I also have the Califina magic. They have made a believer out of me. I cant wait to try the Spark and the glow. I have heard nothing but good things about those two as well and I am dying to see for myself. For anyone wanting to try Fabfast and magic I say hurry up you will not be disappointed.

Frequently Asked Questions

1. What is intermittent fasting and why would I want to do it?

As the term suggests, intermittent fasting, or IF, refers to taking a periodic break from eating. One of the most popular methods involves eating normally 5 days per week followed by 2 days of fasting. On fasting days, there may be no food intake, or calories may be reduced to a low level -say, anywhere from 250 to 500 Calories.

If food is consumed on fasting days, a common approach is to eat a small meal in the morning and then fast until dinner. Using Fabfast as your pre-fast meal removes all of the calorie counting and guesswork and enhances the weight-loss, cleansing and detox benefits of IF.

Many people perform IF to help them manage their weight and support their health and longevity. After several weeks of IF, you may notice that you have more energy, a better mood and can think more clearly. Don’t be surprised if you start looking forward to your IF days!

2. Can I drink during my fast?

Yes! Drink plenty of water to stay hydrated. Teas are also fine. Just make sure anything you drink during the fasting period is calorie-free.

3. Why do you recommend performing intermittent fasting two consecutive days a week, as opposed to non-consecutive days, for the best results?

Simply stated, the reason we recommend performing IF two consecutive days a week is that it takes time for your body to make the changes that are necessary to experience the full benefits of fasting. If you only fast for a day, you interrupt this process.

For the very best slimming results, we recommend using our anti-bloat fat burner, Spark, five consecutive days per week. Then perform IF with Fabfast on the remaining two days. Spark helps relieve water retention and mobilize, or loosen up, body fat.

4. I recently started using Fabfast as a meal replacement when I’m not doing IF. Is that okay?

Absolutely. In fact, replacing one higher-calorie meal with a Fabfast nutritional shake during the day is a simple way to help you slim down faster.

5. I’m going to have Fabfast in the morning and then fast until dinner, as recommended. But how much should I eat for dinner? What about after dinner?

For the best results, we recommend having a Fabfast shake in the morning and then fasting at least 8 hours until dinner. As a general rule of thumb, shoot for a dinner that provides no more than 400 Calories. After dinner, we generally recommend that you don’t eat anything until the morning. This will help you achieve the very best results.

On the days that you don’t practice IF, we recommend eating dinner no later than 7 PM. This simple practice will make it significantly easier for you to maintain your weight. Many people find that eating their last meal earlier in the day also helps them sleep soundly and wake up feeling recovered.

6. If I practice IF two days a week, can I eat whatever I want the other days?

As much as we’d like to be able to tell you “Yes!”, the reality is that practicing IF does not give you the freedom to overindulge on non-fasting days. In general, you should eat sensibly most of the time and periodically eat very little or nothing for an extended period of time (e.g. 2 consecutive days). In a nutshell, that’s the basis of IF.

7. Should I be working out on days I practice IF?

Yes, we recommend that you work out on intermittent-fasting (IF) days. This will help you mobilize and burn off more body fat, enhance the cleansing effects and provide countless other benefits.

More questions?

If you have any questions about Glow™ please feel free to get in touch. At Califina™, we pride ourselves in the quality of our products and our customer service.

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