Title:
A review of fatty acid profiles and antioxidant content in grass-fed and grain-fed beef
Author:
Cynthia A Daley
Email author,
Amber Abbott,
Patrick S Doyle,
Glenn A Nader and
Stephanie Larson
Link
https://nutritionj.biomedcentral.com/articles/10.1186/1475-2891-9-10
Summary: Review of fats in grass-fed beef vs. grain-fed beef
CLA is an anti-carcinogen that grass-fed beef contains which is very significant because fish have been proved to contain carcinogens.
ReplyDeleteWhat exactly is TVA and how is it converted into CLA?
ALA is very beneficial and much of it converts to DHA which is in contrast to Bajaj's article. Why is there this difference in opinion on ALA? How could our Chem. Research class close the gap?
ReplyDeleteLearned: In grass-fed beef, the n-3 to n-6 ratio is better than in grain-fed beef
ReplyDeleteQuestion: So does grass-fed beef give you more omega-3s per serving, or is it just healthier because the n-3/n-6 ratio is better?
Grass fed beef does not necessarily have more omega-3s than grain fed, but is does have a more favorable n-3 to n-6 ratio.
ReplyDeleteHow does vaccenic acid (TVA) affect the body compared to DHA and EPA?
Grass fed beef has a better omega-3 to omega-6 ratio to benefit our health.
ReplyDeleteWhat is it about the structures of certain omega-3s that makes them beneficial to our health? ALA vs Linolenic acid, for example.
Learned: Linoleic acid will convert to omega-6's, while Alpha-linoleic acid will concert into omega-3's (DHA).
ReplyDeleteQuestion: What percent of linoleic acid and ALA is concerted into omega-3's and omega-6's, and how much is simply filtered out?
ALA is useful because the majority of the ALA consumed can be converted to DHA.
ReplyDeleteQuestion: Why is the omega-6 ratio important to omega-3 in regards to beef?
A few questions:
ReplyDelete(1) Can you find supportive information regarding the efficiency of ALA to DHA conversion?
(2) What is the mechanism for this transformation?
(3) What conditions favor the conversion?