Our brains and myelin nerve sheath are made from a large amount of Docosahexaenoic acid, DHA. As we know vitamin B12 deficiency affect myelin building, leading to neuropathy.
To rebuild your brain and nerves make sure you are getting plenty of cold water oily fish in your diet, salmon, mackerel, anchovies, tuna, herring. If you can't stomach the idea of that, take a fish oil supplement.
As an aside, I noticed 'Psychology Today' was a bit hit and miss on it's vitamin B12 coverage. So for those of you that like campaigning, maybe it should be a target. All Psychologists need to know clearly about the function of vitamin B12 and the issues around clear deficiency diagnosis.
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Oneash
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It's debated whether a direct source of EPA/DHA is necessary or not for adults, but if you want to supplement EPA/DHA, as the article mentions (to its credit) you can easily avoid harming fish by getting an algal-source EPA/DHA supplement instead which are very accessible these days (I remember when there was only one company in the market and now you can get them in supermarkets).
They come in adequate dosages these days contrary to the article, and its important to consider that too much Omega-3 also has some associations with atrial fibrillation, indicating it may be safer to stay under 1 gram of total EPA/DHA (300-500mg combined EPA/DHA is often recommended).
The tired claim in the article that excess Omega-6 oils are inflamatory doesn't hold up to the evidence. sigmanutrition.com/omega6-i...
The article states that:
"All whole plant and animal foods naturally contain a mixture of saturated and unsaturated fats"
While this is technically true, it may be misleading as it could imply that both food groups have a similar saturated fat to unsaturated fat ratio. Other than rare exceptions like coconut oil, most plants foods are very low in saturated fats, contributing to a low intake of saturated fat in the diet overall, which is beneficial for heart health. Some types of saturated fats (like those found in dark chocolate) are healthy but many can contribute to raising LDL Cholesterol and ApoB.
Publications on psychology are usually not the best source for nutrition information and Georgia Ede is a well-known promoter of low-carb animal-food heavy diets.
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