Meaning: 'However' means 'on the other hand' or 'but,' introducing a contrast to the previous statement about the benefits of organic milk.

Wrong options:

• Whenever: 'Whenever' indicates a time-related condition and does not convey contrast, making it unsuitable here.
• Moreover: 'Moreover' suggests an addition rather than a contrast, which does not fit the context of the sentence.
• Furthermore: 'Furthermore' also implies an addition, similar to 'Moreover,' and does not provide the necessary contrast.

Correct answer: associated

Explanation: The word 'associated' is correctly used in the passive voice to indicate a connection between higher omega-3 intake and health benefits, aligning with the grammatical structure and context of the sentence.

Meaning: 'Associated' means to be connected or linked with something, in this case, omega-3 fatty acids and health benefits.

Wrong options:

• talked: 'Talked' implies verbal communication and does not fit the context of establishing a relationship between omega-3 intake and health benefits.
• mentioned: 'Mentioned' suggests a brief reference rather than a strong connection, making it less appropriate in this context.
• gathered: 'Gathered' implies collection or accumulation, which does not convey the intended meaning of a relationship or connection.

Correct answer: conflicting

Explanation: The word 'conflicting' accurately describes the results as being contradictory or at odds with each other, fitting both grammatically and contextually within the sentence.

Meaning: 'Conflicting' means having opposing or contradictory results, which is appropriate given the context of the study's findings.

Wrong options:

• amazing: 'Amazing' conveys a sense of wonder or surprise, which does not accurately describe the nature of the results in this context.
• real: 'Real' suggests authenticity but does not convey the idea of contradiction, making it unsuitable here.
• satisfactory: 'Satisfactory' implies adequacy or fulfillment, which does not align with the notion of contradictory results.

Correct answer: due to

Explanation: The phrase 'due to' indicates a cause-and-effect relationship, explaining that the higher intake of certain nutrients was a result of increased vegetable consumption, fitting grammatically and contextually.

Meaning: 'Due to' means 'because of' and is used to indicate the reason for something, which is appropriate in this context.

Wrong options:

• since: 'Since' can imply time or causation but is less precise than 'due to' in this context, making it less suitable.
• for: 'For' does not convey a causal relationship in this context, as it typically indicates purpose rather than reason.
• in spite of: 'In spite of' suggests a contradiction or exception, which does not fit the intended meaning of explaining the cause of higher nutrient intake.