Friday, December 28, 2018

How to Differentiate Soluble and Insoluble Fiber

How to differentiate soluble from insoluble fiber?

From my last grocery shopping, I discovered this Optifiber product from Kirkland Signature. 

Optifiber a natural fiber supplement, a flavor free-sugar free powder. 

This is a type of soluble fiber that dissolves in water when mixed. Oats, oatmeal, peas, beans, lentils, fruits and vegetables especially oranges, carrots, and apples are a good source of soluble fiber. The reason we always hear from our parents and elders to eat more vegetables and fruits. Insoluble fiber does not dissolve in water, examples of this is found in whole wheat and whole wheat products, also in other fruits and vegetables that we eat.

For both diarrhea and constipation soluble fiber is the best solution for it, while insoluble fiber is the key when you are experiencing constipation. 

There are times where natural fiber-source food is not available, we can rely on this kind of supplements which I think can serve in the daily nutritional value of our body needs. And, for just a little time and effort we can provide our body some nutritional boost.  

Optifiber can be mixed into coffee, tea, juice or any non-carbonated hot or cold beverage. The powder can also be mixed in any soft food such as puddings, yogurt, applesauce or oatmeal.
  • dissolves completely in water (hot or cold)
  • non-thickening
  • all natural ingredients
  • non-GMO
  • flavor-free
  • sugar-free
  • grit-free
Suggested use: Stir two teaspoons or one scoop (scoop provided inside the tub) of Optifiber to at least 4oz of any non-carbonated beverage until it dissolved.

Serving suggestions: Adults and children 12 and over do not exceed to 5 servings per day. 
Children 7-11 years old up to 3 servings per day. 
Children under 6 years of age, consult your doctor before use. 

For $5.68 per 1.6 lb, you can get 200 servings.


My verdict as a first-time user of this brand, it is really tasteless and easily dissolves in cold water. Upon mixing it in water, it creates a cloudy-like color in the water and after a minute or so, the cold water became clearer. I have not yet tried mixing it in any other soft foods or hot beverages. 

Although natural is the best way to get our daily nutritional needs, there are always options and additional source we can use, and coming from brands that serve and provide nutritional benefit there's no harm in trying.

Have you tried this fiber mix from Kirkland before? What was your experience? 

***this is not a sponsored post. 


  1. I've never heard of this before but have been looking for ways to get more fiber. Will have to keeo an eye out for this product!

  2. I don't know anything about fiber! Very interesting and informative post on the different kinds

  3. I have never heard of Optfibre, but this looks like a good thing to use. I am going to look for it when I go shopping. Vicky

  4. I've never tried that fiber mix before, but it sure sounds good. I like that is sugar free, non GMO and all natural. It's really convenient that it can be mixed with basically any drink. Thanks for sharing!

  5. I’ve never heard of this before but it’s worth checking out. Thanks for sharing.

  6. I love it when I learn something new as I have with this post. I never even knew there was a difference before.

  7. I need to add a lot more soluble fiber to my diet. I've never tried this brand yet, I will check it out for sure. Thanks for sharing.

  8. I love this explanation. I need to know for my kiddos!

  9. Kirkland optifiberis a must try product. I always wanted to try this and I have heard a lot about this before and been looking for this one.

  10. Thanks for sharing this I will definitely going to check out this later

  11. I would like to check it out, I am afraid of fiber products as I have to take a lot while pregnant with my kids. This products sound great.

  12. I never heard about fiber earlier. And this looks very helpful and informative post. Thanks for sharing

  13. I want to try this. Kirkland is a brand I trust. Thanks for sharing!

  14. I agree that it is good to try different things out and see how your body reacts. This supplement could be good when people are sick and can't eat proper food.

  15. Great tips and recommendation! Thanks a lot for sharing and reviewing this product with us, and I am looking forward to trying it. - Knycx Journeying

  16. There is certainly a great deal to find out about this topic. I really need to try this product because I sometime have constipation. I need to learn more about proper diet and be aware of food I ingest. Thanks for sharing this!

  17. This is interesting. I did not know this and I am mind blown. I need more fiber and why not just take a fiber shot in the morning.