Dear Dr. Cockroach: I have a question about consuming omega-3 fatty acids, either by consuming fish or by supplements like fish oil. Apparently, many American diets are deficient in omega-3 fatty acids. One possible reason is that most American beef cattle are primarily fed corn rather than natural grass-fed foods. This leads to meats that are low in omega-3s. Most of the arguments for increasing omega-3 fatty acid intake seem to be related to heart health. But omega-3 fatty acids are important for brain health, too. I suspect there may be a correlation between the low omega-3 levels caused by these foods and the dementia epidemic and Alzheimer̵7;s disease — AJS.
A: Grass-fed beef contains more omega-3 oils than grain-fed beef. However, the amount even in grass-fed beef is relatively low compared to other sources. One standard serving of grass-fed sirloin beef contains about 65 mg of omega-3 fats, which is about 50% more than grain-fed beef. There is no official recommended intake level for omega-3 fatty acids, but the Institute. Medicine notes that healthy adults eat 1,100 (women) and 1,600 (men) daily.
Grass-fed beef isn’t really a good source. It takes 4.5 pounds of grass-fed beef every day to reach the goals for men. Not a healthy choice. One serving of salmon contains over 1,800 mg. More importantly, Although the information is still mixed But most studies show that changing a diet from red meat to plants and fish leads to a reduced risk of cardiovascular disease.
Population studies show that high intake of omega-3 fatty acids is associated with a reduced risk of developing dementia. as well as reducing high blood pressure and heart disease. However, clinical studies using omega-3 supplements to treat or prevent dementia such as Alzheimer’s disease It did not show any benefit or little benefit.
in my opinion a diet rich in fruits and vegetables Legumes, nuts, and fatty fish, such as the Mediterranean diet. There are many health benefits. including reducing the risk of dementia and vascular disease If you like to eat beef I recommend doing it only occasionally. Until there is a clear benefit showing that grass-fed beef has health benefits compared to grain-fed grains. I think that eating beef sparingly is more important than switching to grass-fed food.
Dear Dr. Cockroach: I am a 92 year old woman. I eat a lot of vegetables, fruits and seafood. My doctor said a 20 year old would be jealous of my blood. I exercise four days a week by jogging. Stretching and lifting weights
My problem is that my blood pressure is usually around 135/70, sometimes a little higher or lower. I’m worried it’s too high. But my doctor was happy with that number. What is your opinion? — RY
answer: An outcome of 135/70 in healthy people without other risk factors is often not an indication for drug treatment. However, just 92 years of age is at risk for heart disease. And it’s always a good idea to try to minimize risks where you can. You seem to be eating and exercising very well. And that may help with blood pressure as well.
I agree with your doctor that your blood pressure doesn’t need treatment beyond the healthy lifestyle you adopt. But your needs matter. If you really want to heal I would consider one of the safest antihypertensive drugs at very low doses. The benefit from the drug will be minimal.
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