Final answer:
John could consume between 100 and 175 grams of fat per day, based on the recommended fat intake of 20-35% of his daily kilocalorie intake of 4500 kilocalories.
Step-by-step explanation:
John could consume between 900 and 1575 kilocalories from fat based on the recommended fat intake of 20-35% of his daily kilocalorie intake of 4500 kilocalories. To calculate the grams of fat, we need to convert kilocalories to grams. Each gram of fat contains 9 kilocalories. So, based on the range of fat intake, John could consume between 100 and 175 grams of fat per day.
Let's calculate the range:
- Minimum fat intake: 20% of 4500 kilocalories = 900 kilocalories
- Maximum fat intake: 35% of 4500 kilocalories = 1575 kilocalories
- To convert kilocalories to grams, divide the kilocalories by 9:
Minimum fat intake: 900 kilocalories / 9 = 100 grams
Maximum fat intake: 1575 kilocalories / 9 = 175 grams