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CARE Member Question:

“I have a question about Chia, Hemp, Flax. What are the unique differences between these and what are the benefits ( pros and cons ) of each?”

 

Answer:

The top difference between flax, chia, and hemp are the ratio of minerals, fatty acids, fiber, and phytonturients that they contain. The top nutrients that seeds (like flax, hemp, chia and even less glamorized like sunflower and sesame) bring to the party are: minerals, fatty acids, fiber, and phytonutrients (esp polyphenols and lignans). The less glamorized sunflower also is a rich source of dietary vitamin E. The ratio of these nutrients in each seed is what makes them different.

Flax, hemp, and chia are most known for providing omega 3 and omega 6 fatty acids. We hear of omega fatty acids for their role in managing inflammation. The important thing to remember is that seeds do not contain the pre-formed variety of omega 3 called EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) which fish and seafood, sea algae, and grass-fed animal products contain. EPA and DHA are the form of omega 3 most researched as having a beneficial effect on inflammation and cognition.

Flax, chia, and hemp contain the plant-based variety of omega 3 called ALA (alpha-linolenic acid). Our bodies, with all the right conditions, can convert ALA to EPA and DHA but it is not at all an efficient process.

SO, the reason this is important is because omega 3 fatty acids no longer become the most important thing seeds contribute. What is much more exciting are the minerals, fiber, and phytonutrients and this is where flax starts to take the lead.

 

Why Flax = Lignans

Ground flax (must be ground to access the lignans) is the richest dietary source of a fiber-type substance called lignans. Lignans are our very good friends in helping regulate hormone levels and protecting against hormone related cancer.  Flax is also a powerful antioxidant. I have done a full post here on the benefits, dosage, and how-to use flax seeds.

 

Why Hemp = Minerals

Now we are talking about the minerals. I have hemp in my fridge because of the natural magnesium and iron hemp contains. Plant-based sources of iron is called non-heme iron and isn’t as readily absorbed by the body as heme iron (found in animal based products) but vitamin C helps this. Adding seeds to your CARE balanced plate and hitting your produce goals will ensure you have some of this vitamin C. I also love the texture of hemp seeds in smoothies compared to more noticeable chia.

 

Why Chia = Soluble Fiber

Now we get excited about soluble fiber. Rehydrated chia seeds are an incredible source of soluble fiber. Soluble fiber helps regulate the speed of your digestive system – insoluble fiber (like in fruit skins) helps speed it up. Soluble fibers are essential to nourishing our native strains of gut bacteria and healing the digestive system in cases of IBS, constipation, and food intolerance.

 

CARE Serving Size Considerations – Recommend Amounts

Unlike whey and brown rice protein powders, seeds (and nuts) are primarily a fat source. 1 tablespoon = 1 fat serving (or about 5 grams of fat). 2 tablespoons could be used for 1 protein serving, but remember now that you are also adding 2 fat servings to you meal. And that could be perfectly great, but if you have other fat sources in the meal, too, this is where incremental calories and slowing of the rate of weight loss sets in (this topic is covered in detail in the materials for CARE Step: Protein and Fats).

The research that has shown the most positive results to-date for using seeds and nuts to help reduce disease risk is an average of 3 tablespoons per day (in total from all sources including almonds and walnuts). This works so easily with your CARE balanced plate and your addition of healthy fats at each meal and snacks.

 

The Bottom Line

Enjoy nuts and seeds often and appreciate the full variety of flax, chia, AND hemp; they each have something unique to bring to the party!

 

Teri Rose, CARE Nutritionist

July 5, 2016

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