Can I Drink Collagen During Intermittent Fasting?

can i drink collagen when intermittent fasting

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Intermittent fasting (IF) is a popular health and fitness trend for good reasons! In general, intermittent fasting (IF) focuses on when you eat, not what you eat. You can drink collagen during intermittent fasting--however, this article will explain the trade-offs.

The theory on intermittent fasting is straightforward--humans weren't made to eat all day long, reducing calories through fasting will naturally lead to weight loss and eating less can lead to a longer life.

Not to mention, there are other benefits of intermittent fasting we discuss below.

Let's get started and answer if drinking collagen during intermittent fasting is a good decision.

Make sure you also check our guide to the gift ideas for the woman who wants nothing!

How You Intermittent Fast Answers The Question

We can look to to give us a clue to answer if drinking a collagen supplement during intermittent fasting is a good idea. 

The definition of fast is:

1. to abstain from all food.

2. to eat only sparingly or of certain kinds of food, especially as a religious observance.

Number 1 means no calories at all during fasting time. Number 2 gives leeway for some calories.

So, can you drink collagen during intermittent fasting? The answer is maybe and depends on if you adopt the first definition of 'fast' or the second. 

Intermittent Fasting Plans

There are a couple of ways to get collagen protein into your diet. One is through a high-quality collagen supplement another is through delicious and healthy bone broth.

Not only are there different ways to get collagen, but there are also different approaches to intermittent fasting.

5:2 Intermittent Fasting Plan

If you're following  The 5:2 Diet, the plan allows for five days of healthy eating and two days of consuming only 500-600 calories each day.

Because there are calories in a collagen peptide supplement, drinking collagen with this type of IF plan would be a great idea.

Collagen powder supplements are generally low in calories, provide protein to help avoid hunger pains and add amino acids that are beneficial for your body.

16:8 and Other Fasting Plans

Other intermittent fasting plans like 16:8 (16-hour fast each day, eg. eat between noon and 8 pm), stop-eat-stop (fast for 24 hours once or twice a week, eat responsibly the other days) and Circadian Rhythm Fasting Approach (only eat when the sun is up).

Clearly, all of these IF plans require zero calories during the fast period.

With this in mind, because there are calories in most collagen powder supplements, these IF approaches would not allow for drinking collagen during the fasting period. (Although you can always choose to modify these zero-calorie fasting plans and allow for some calories.)

Collagen and Intermittent Fasting

To sum this all up, if you're going to be a strict faster, then drinking collagen powder wouldn't be allowed--it would break your fast.

If you're going to allow for some calories during intermittent fasting, then drinking collagen peptides would be a good idea to get extra protein and hold off hunger pangs.

Other Benefits of Drinking Collagen

As we mentioned above, there are other benefits to drinking collagen powder during intermittent fasting.

For example, extra collagen in your daily routine can lead to a healthier-looking head of hair, stronger nails, younger-looking skin, less-achy joints, better-behaved gut and stronger heart arteries--just to name a few benefits.

As a result, not only can collagen help you lose weight through intermittent fasting, but it can also be a 'fountain of youth' to enhance your beauty and body.

What About Drinking Bone Broth While Intermittent Fasting?

Bone broth is a comforting, filling drink that has a lot of beneficial amino acids (the building blocks of the collagen protein chain) and some collagen protein.

Nevertheless, bone broth has calories--somewhere around 70-100 calories.

In short, this is an easy question to answer, it's the same answer as 'can I drink collagen during intermittent fasting' above.

We have reviewed the best bone broth to buy today, so check that article too.

Intermittent Fasting Benefits for Women

To clarify, humans have been fasting for thousands of years--due to a lack of food or for religious reasons.

After all, it's only in the last 30 years or so where the amount of food options available to us has exploded. In reality, your body is not meant to eat all day long. 

Many start intermittent fasting with the goal to lose extra pounds and maintain their weight.

However, intermittent fasting has shown to also provide these amazing health benefits:

Is Intermittent Fasting Safe for Women?

Dr. Kellyann and others say intermittent fasting is generally safe.

However, there could be downsides to intermittent fasting such as low-quality sleep, an increase in cortisol and emotional guilt over breaking a fast.

Although many people adjust well to IF, there are women who experience jitters, changes in menstrual cycles, weakness and mood swings by going without food for a long period of time. 

Women who have trouble conceiving or are trying to conceive, pregnant or breastfeeding or diabetic should not consider doing IF. 

As always, we highly recommend you consult with your healthcare professional before starting any intermittent fasting plan.


What's an easy way to experience weight loss and then maintain the weight loss over time?  One way many have adopted is intermittent fasting (IF).

Not only does IF help with your weight loss and management goals, but there are also strong indications that intermittent fasting can improve overall health, prevent debilitating diseases and even extend your life. 

Some intermittent fasting plans allow for calories on fasting days, others don't allow any calories. It's up to you on how which plan works best for your lifestyle and body and how strict you want to be overall.

For example, even if an intermittent fasting plan calls for zero calories during fasting, you may choose to allow some calories. Obviously, your results may differ, but everybody and situation is different.

If your plan allows for some calories, drinking collagen or bone broth would be helpful to get through the fasting period.

If your plan or intention is zero calories during the fasting period, then neither the collagen or bone broth would be allowed.