Question:

If fish oil is taken in the morning, how soon afterwards can a fiber supplement be taken without absorbing the fish oil?

– Gary J.

Answer:

My, my, someone is thinking ahead and looking to get the most bang for their supplement bucks! Shouldn’t we all? Seems that you’ve implied fiber absorbs fat present in the gut. …And you’d be right! Soluble fiber is known for binding with liver-created cholesterol (put out via bile secretion) and passing it through the gut. Fiber supplements usually contain psyllium, providing 5-10 grams soluble fiber per serving.

Now, to answer your question we would need to know the clearance time of a fish oil supplement. Hmm. That would depend on whether it’s straight oil, an emulsified liquid form, or a capsule. Whether food or beverage is also being consumed at the same time makes a difference. Therefore, I could not accurately say how long that process takes from mouth to large intestine.

The soundest advice would be to consume your fish oil and fiber supplement hours apart to prevent any interplay affecting digestion or absorption.

– Debbie J., MS, RD

This article should not replace any exercise program or restrictions, any dietary supplements or restrictions, or any other medical recommendations from your primary care physician. Before starting any exercise program or diet, make sure it is approved by your doctor.

Some questions have been edited for length and/or clarity.

Ask our Dietitian

Have a nutrition question? Our registered dietitian is ready to help!

Email nutrition@lafitness.com or submit your question below and it may be featured in an upcoming article!

12 + 7 =


Recommended Reading - Q+A

Blender with fresh ingredients to making healthy detox smoothie with glass of green prepared drink with a straw. Vegan cooking concept
Healthy Smoothie Recipes

Healthy Smoothie Recipes

Cue the sound of a revving engine… running your blender at home can bring goodness with that whirring noise! Creating your own smoothies is a great way to get in some nutrients and plant phytochemicals you otherwise wouldn’t during the day. It allows you to prepare...

Good carbs vs bad carbs
Debunking Diet Myths

Debunking Diet Myths

With so many sources offering nutrition advice, it’s hard to know what’s true. Even factual information can become distorted by the time it reaches you. Like a game of telephone, the message often changes as it’s passed along. Here, we debunk 5 common diet myths to...