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Eating fish and other foods rich in omega-3 fatty acids

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Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 12 Aug 2018, 21:08
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Eating fish and other foods rich in omega-3 fatty acids could help people maintain healthy brains as they age as well as protect their hearts, new research suggests. Per this research, participants with low levels of omega-3 fatty acids in their blood had slightly smaller brains and scored lower on memory and cognitive tests than people with higher blood levels of omega-3s.

The researchers then looked at and ranked the level of omega-3 fatty acids in the participants' blood. People who scored in the bottom 25% in omega-3 fatty acid levels were compared with the rest of the study participants. Researchers found that those who had the lowest level of omega-3 fatty acid levels in their blood had lower brain gray matter volume compared with those with higher levels.

Gray matter volume is crucial to brain health. When it remains higher, brain health is being maintained. Decrease in gray matter volume indicates that brain cells are shrinking. The findings showed that consumption of baked or broiled fish on a weekly basis was positively associated with retention of gray matter volume in several areas of the brain. In fact the greater hippocampal, posterior cingulate, and orbital frontal cortex volumes obtained by optimal fish consumption led to reduced risk of contracting MCI or Alzheimer’s by almost five-fold.

The most recent U.S. dietary guidelines—released last year—recommend at least two servings of seafood a week. Some doctors and diet experts recommend that patients consume fish three times a week or take fish-oil supplements so they get enough omega-3 fatty acids to obtain health benefits.

1) According to the passage, people who eat foods rich in Omega 3 acids experience which of the following benefits

A) Improve memory and retention

B) Increase gray matter volume that leads to improved analytical skills

C) Do not suffer from diseases such as Alzheimer's

D) Are on an average at a much lower risk of contracting Alzheimer's when compared to the general population, regardless of their family history

E) Are able to maintain a healthy brain for longer as they age



2) The experiment discussed in paragraph 2 suggests

A) People who scored in the top quartile took Omega 3 supplements while those who scored lower did not.

B) For people in any age group, there is a direct correlation between Omega 3 and the amount of gray matter.

C) There is a high probability that people with extremely low levels of Omega 3 in blood will also have low gray matter volume

D) The reason why kids don’t do as well in Maths and science is due to the low intake of Omega 3.

E) Taking Omega 3 beyond a point has little impact on the amount of grey matter volume build up.



3) The author’s main purpose in writing the passage is

A) Describing a research and presenting its findings

B) Comparing the benefits provided by Omega 3 in regards to preventing MCI or Alzheimer’s.

C) Discussing the utility of various varieties of fish as a source of Omega 3.

D) Comparing how the risk of contracting MCI or Alzheimer’s reduces with the corresponding increased intake of fish rich in Omega 3.

E) Justifying the reason that U.S. dietary guidelines recommend at least two servings of seafood a week.



4) The passage suggests the following about diet and gray matter volume

A) Regular consumption of foods rich in Omega 3 help maintains gray matter volume for longer periods.

B) People who eat foods richer in Omega 3 tend to have higher than average gray matter volume.

C) It is important to maintain gray matter volume above a certain level to avoid risk of MCI or Alzheimer’s.

D) Any irregularity in consuming foods rich in Omega 3 would result in reduction in brain gray matter volume.

E) Once the gray matter volume reduces, it is not possible to increase the same by consuming foods rich in Omega 3.



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Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 13 Aug 2018, 08:03
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1) According to the passage, people who eat foods rich in Omega 3 acids experience which of the following benefits


A) Improve memory and retention

The passage didn't talk anything about improving memory. The passage talks about retention but it specifies retention of gray matter volume. INCORRECT

B) Increase gray matter volume that leads to improved analytical skills

The passage doesn't talk about increasing gray matter volume. It talks only about retention of gray matter volume. The analytical skills are not mentioned in the passage INCORRECT

C) Do not suffer from diseases such as Alzheimer's

The passage says eating foods rich in Omega 3 acids reduces risk of Alzheimer's. It doesn't mean no suffering. INCORRECT

D) Are on an average at a much lower risk of contracting Alzheimer's when compared to the general population, regardless of their family history

No mention of family history in the passage. INCORRECT

E) Are able to maintain a healthy brain for longer as they age

This option is a paraphrase of the very first sentence in the passage CORRECT

2) The experiment discussed in paragraph 2 suggests


A) People who scored in the top quartile took Omega 3 supplements while those who scored lower did not.

The second paragraph doesn't talk about how people in the top quartile obtain Omega 3 supplements INCORRECT

B) For people in any age group, there is a direct correlation between Omega 3 and the amount of gray matter.

Paragraph talks about "people who had the lowest level of omega-3 fatty acid" and option B talks about "For people in any age group" INCORRECT

C) There is a high probability that people with extremely low levels of Omega 3 in blood will also have low gray matter volume

From the comparison presented in second paragraph, this can be inferred. CORRECT

D) The reason why kids don’t do as well in Maths and science is due to the low intake of Omega 3.

No mention of performance in Maths and science INCORRECT

E) Taking Omega 3 beyond a point has little impact on the amount of grey matter volume build up.

The second paragraph doesn't talk about any such limiting point after which Omega 3 has little impact on the amount of grey matter volume INCORRECT

3) The author’s main purpose in writing the passage is


A) Describing a research and presenting its findings

The author presents the research in the first paragraph and discussed the findings in paragraphs 2, 3, 4 CORRECT

B) Comparing the benefits provided by Omega 3 in regards to preventing MCI or Alzheimer’s.

benefits provided by Omega 3 in regards to preventing MCI or Alzheimer’s is discussed only in paragraph 3 INCORRECT

C) Discussing the utility of various varieties of fish as a source of Omega 3.

various varieties of fish are not discussed in the passage INCORRECT

D) Comparing how the risk of contracting MCI or Alzheimer’s reduces with the corresponding increased intake of fish rich in Omega 3.

The diseases specified in this option are discussed only in paragraph 3 INCORRECT

E) Justifying the reason that U.S. dietary guidelines recommend at least two servings of seafood a week.

U.S. dietary guidelines are discussed only in paragraph 4 INCORRECT

4) The passage suggests the following about diet and gray matter volume


A) Regular consumption of foods rich in Omega 3 help maintains gray matter volume for longer periods.

Paragraph 1 states omega-3 fatty acids could help people maintain healthy brains as they age. Paragraph 3 shows the relation between gray matter volume and brain health. From these, we can infer this option CORRECT

B) People who eat foods richer in Omega 3 tend to have higher than average gray matter volume.

Passage doesn't specify anything about average gray matter volume INCORRECT

C) It is important to maintain gray matter volume above a certain level to avoid risk of MCI or Alzheimer’s.

This option talks about gray matter volume above a certain level. The passage doesn't talk about this level INCORRECT

D) Any irregularity in consuming foods rich in Omega 3 would result in reduction in brain gray matter volume.

Irregularity in consuming foods rich in Omega 3 is not discussed INCORRECT

E) Once the gray matter volume reduces, it is not possible to increase the same by consuming foods rich in Omega 3.

The passage doesn't talk about how to increase gray matter volume INCORRECT
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 12 Aug 2018, 23:38
Hi workout, I need help with Q2.

the paragraph says (quote) Researchers found that those who had the lowest level of omega-3 fatty acid levels in their blood had lower brain gray matter volume compared with those with higher levels (unquote). Does it not give direct correlation ?
Please tell me what I missed when I picked B instead of C.
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 12 Aug 2018, 23:46
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Gagoosh wrote:
Hi workout, I need help with Q2.

the paragraph says (quote) Researchers found that those who had the lowest level of omega-3 fatty acid levels in their blood had lower brain gray matter volume compared with those with higher levels (unquote). Does it not give direct correlation ?
Please tell me what I missed when I picked B instead of C.


Gagoosh

Paragraph talks about "people who had the lowest level of omega-3 fatty acid" and option B talks about "For people in any age group". That's a red signal.
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 13 Aug 2018, 00:10
1
workout wrote:
Gagoosh wrote:
Hi workout, I need help with Q2.

the paragraph says (quote) Researchers found that those who had the lowest level of omega-3 fatty acid levels in their blood had lower brain gray matter volume compared with those with higher levels (unquote). Does it not give direct correlation ?
Please tell me what I missed when I picked B instead of C.


Gagoosh

Paragraph talks about "people who had the lowest level of omega-3 fatty acid" and option B talks about "For people in any age group". That's a red signal.


...and extremely low level agrees with the lowest level. Got it. Thanks mate.
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 13 Aug 2018, 03:45
Pls Explain 4th question. Where is it mentioned that omega 3 helps to maintain grey matter for longer periods?
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 13 Aug 2018, 03:48
Why is the answer to Q.4 a? I picked B using the below extract from the passage as the basis for my answer?

"Researchers found that those who had the lowest level of omega-3 fatty acid levels in their blood had lower brain gray matter volume compared with those with higher levels."
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Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 13 Aug 2018, 11:47
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jasukhera ramyamannem

Let me explain you guys on Q4:-

Read these lines:-

"Gray matter volume is crucial to brain health. When it remains higher, brain health is being maintained. Decrease in gray matter volume indicates that brain cells are shrinking. The findings showed that consumption of baked or broiled fish on a weekly basis was positively associated with retention of gray matter volume in several areas of the brain."

4) The passage suggests the following about diet and gray matter volume

A) Regular consumption of foods rich in Omega 3 help maintains gray matter volume for longer periods.

This is matching with the lines mentioned : "Gray matter volume is crucial to brain health. When it remains higher, brain health is being maintained"
Hold on!


B) People who eat foods richer in Omega 3 tend to have higher than average gray matter volume.

Never ever in the passage is said about gray matter being higher . It is always said that retention happens. So this is incorrect.

C) It is important to maintain gray matter volume above a certain level to avoid risk of MCI or Alzheimer’s.

Not at all mentioned. "Important to maintain" should throw a sense of doubt here as this is not mentioned. Incorrect option.

D) Any irregularity in consuming foods rich in Omega 3 would result in reduction in brain gray matter volume.

Passage never talks about irregularity. Incorrect.

E) Once the gray matter volume reduces, it is not possible to increase the same by consuming foods rich in Omega 3.

Ohh man!! Crap option!! Ignore again.

You see A is best of the lot.


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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 14 Sep 2018, 00:33
Hi workout,

Isn't C for Q2 just a re-statement of researchers' findings. I chose A with the concept of complement information - https://gmatclub.com/forum/efficiently-tackle-inference-questions-in-rc-and-cr-145250.html.
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 19 Sep 2018, 03:19
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Amazing passage to use option elimination technique.
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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 22 Sep 2018, 06:39
workout wrote:
Eating fish and other foods rich in omega-3 fatty acids could help people maintain healthy brains as they age as well as protect their hearts, new research suggests. Per this research, participants with low levels of omega-3 fatty acids in their blood had slightly smaller brains and scored lower on memory and cognitive tests than people with higher blood levels of omega-3s.

The researchers then looked at and ranked the level of omega-3 fatty acids in the participants' blood. People who scored in the bottom 25% in omega-3 fatty acid levels were compared with the rest of the study participants. Researchers found that those who had the lowest level of omega-3 fatty acid levels in their blood had lower brain gray matter volume compared with those with higher levels.

Gray matter volume is crucial to brain health. When it remains higher, brain health is being maintained. Decrease in gray matter volume indicates that brain cells are shrinking. The findings showed that consumption of baked or broiled fish on a weekly basis was positively associated with retention of gray matter volume in several areas of the brain. In fact the greater hippocampal, posterior cingulate, and orbital frontal cortex volumes obtained by optimal fish consumption led to reduced risk of contracting MCI or Alzheimer’s by almost five-fold.

The most recent U.S. dietary guidelines—released last year—recommend at least two servings of seafood a week. Some doctors and diet experts recommend that patients consume fish three times a week or take fish-oil supplements so they get enough omega-3 fatty acids to obtain health benefits.
1) According to the passage, people who eat foods rich in Omega 3 acids experience which of the following benefits

A) Improve memory and retention

B) Increase gray matter volume that leads to improved analytical skills

C) Do not suffer from diseases such as Alzheimer's

D) Are on an average at a much lower risk of contracting Alzheimer's when compared to the general population, regardless of their family history

E) Are able to maintain a healthy brain for longer as they age

"Eating fish and other foods rich in omega-3 fatty acids could help people maintain healthy brains as they age"



2) The experiment discussed in paragraph 2 suggests

A) People who scored in the top quartile took Omega 3 supplements while those who scored lower did not.

B) For people in any age group, there is a direct correlation between Omega 3 and the amount of gray matter.

C) There is a high probability that people with extremely low levels of Omega 3 in blood will also have low gray matter volume

D) The reason why kids don’t do as well in Maths and science is due to the low intake of Omega 3. Too extreme.

E) Taking Omega 3 beyond a point has little impact on the amount of grey matter volume build up.



3) The author’s main purpose in writing the passage is

A) Describing a research and presenting its findings

1st para introduces a topic and rest of the paragraphs build upon it.

B) Comparing the benefits provided by Omega 3 in regards to preventing MCI or Alzheimer’s.

C) Discussing the utility of various varieties of fish as a source of Omega 3.

D) Comparing how the risk of contracting MCI or Alzheimer’s reduces with the corresponding increased intake of fish rich in Omega 3.

E) Justifying the reason that U.S. dietary guidelines recommend at least two servings of seafood a week.



4) The passage suggests the following about diet and gray matter volume

We need to find a relation between dier and gray matter volume.


A) Regular consumption of foods rich in Omega 3 help maintains gray matter volume for longer periods.
"The findings showed that consumption of baked or broiled fish on a weekly basis was positively associated with retention of gray matter volume in several areas of the brain."

B) People who eat foods richer in Omega 3 tend to have higher than average gray matter volume.
Gray matter has not been quantified.

C) It is important to maintain gray matter volume above a certain level to avoid risk of MCI or Alzheimer’s.
"In fact the greater hippocampal, posterior cingulate, and orbital frontal cortex volumes obtained by optimal fish consumption led to reduced risk of contracting MCI or Alzheimer’s by almost five-fold."
The highlighted statement is too extreme and not supported by the passage.

D) Any irregularity in consuming foods rich in Omega 3 would result in reduction in brain gray matter volume.

The highlighted statement is too extreme and not supported by the passage.
E) Once the gray matter volume reduces, it is not possible to increase the same by consuming foods rich in Omega 3.


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Re: Eating fish and other foods rich in omega-3 fatty acids  [#permalink]

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New post 22 Sep 2018, 06:41
1) According to the passage, people who eat foods rich in Omega 3 acids experience which of the following benefits

A) Improve memory and retention

B) Increase gray matter volume that leads to improved analytical skills

C) Do not suffer from diseases such as Alzheimer's

D) Are on an average at a much lower risk of contracting Alzheimer's when compared to the general population, regardless of their family history

E) Are able to maintain a healthy brain for longer as they age

"Eating fish and other foods rich in omega-3 fatty acids could help people maintain healthy brains as they age"



2) The experiment discussed in paragraph 2 suggests

A) People who scored in the top quartile took Omega 3 supplements while those who scored lower did not.

B) For people in any age group, there is a direct correlation between Omega 3 and the amount of gray matter.

C) There is a high probability that people with extremely low levels of Omega 3 in blood will also have low gray matter volume

D) The reason why kids don’t do as well in Maths and science is due to the low intake of Omega 3. Too extreme.

E) Taking Omega 3 beyond a point has little impact on the amount of grey matter volume build up.



3) The author’s main purpose in writing the passage is

A) Describing a research and presenting its findings

1st para introduces a topic and rest of the paragraphs build upon it.

B) Comparing the benefits provided by Omega 3 in regards to preventing MCI or Alzheimer’s.

C) Discussing the utility of various varieties of fish as a source of Omega 3.

D) Comparing how the risk of contracting MCI or Alzheimer’s reduces with the corresponding increased intake of fish rich in Omega 3.

E) Justifying the reason that U.S. dietary guidelines recommend at least two servings of seafood a week.



4) The passage suggests the following about diet and gray matter volume

We need to find a relation between dier and gray matter volume.


A) Regular consumption of foods rich in Omega 3 help maintains gray matter volume for longer periods.
"The findings showed that consumption of baked or broiled fish on a weekly basis was positively associated with retention of gray matter volume in several areas of the brain."

B) People who eat foods richer in Omega 3 tend to have higher than average gray matter volume.
Gray matter has not been quantified.

C) It is important to maintain gray matter volume above a certain level to avoid risk of MCI or Alzheimer’s.
"In fact the greater hippocampal, posterior cingulate, and orbital frontal cortex volumes obtained by optimal fish consumption led to reduced risk of contracting MCI or Alzheimer’s by almost five-fold."
The highlighted statement is too extreme and not supported by the passage.

D) Any irregularity in consuming foods rich in Omega 3 would result in reduction in brain gray matter volume.

The highlighted statement is too extreme and not supported by the passage.
E) Once the gray matter volume reduces, it is not possible to increase the same by consuming foods rich in Omega 3.

[/box_in][/box_out][/quote]
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Re: Eating fish and other foods rich in omega-3 fatty acids &nbs [#permalink] 22 Sep 2018, 06:41
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