How do some mammals produce ascorbic acid, while others require a dietary supply of it, and what is the significance of this difference?

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What are the consequences of starvation, and how does it lead to the breakdown of body tissue?

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What are the risks associated with being overweight, particularly in relation to hypertension and type II diabetes?

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How is appetite controlled by the centre in the hypothalamus, and how does this affect eating behavior?

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What are the causes and effects of malnutrition, and how can it result from deficiencies, imbalances, or excesses of nutrients in the diet?

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How does the lack of essential amino acids affect protein production?

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Which fatty acids and amino acids are considered essential, and what is their role in the body?

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What role do vitamins play in the body, and why can’t they be synthesized by the body?

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How do dietary minerals function as essential chemical elements in the body?

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What are essential nutrients, and why must they be included in the diet?

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