Convert 8 Beers/Night to Weight Gain in Pounds

  • Context: High School 
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Discussion Overview

The discussion revolves around estimating weight gain from the consumption of 8 beers per night over five nights, quantified as 6098.4 kcal. Participants explore the relationship between caloric intake and weight gain, considering various assumptions and factors that influence this relationship.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant seeks assistance in converting caloric intake to weight gain, indicating uncertainty in the calculations.
  • Another participant points out the distinction between kcal as a measure of energy and pounds as a measure of mass, suggesting that precise data on energy expenditure is necessary for accurate weight gain estimation.
  • A third participant proposes two assumptions for a rough estimate: that the caloric intake exceeds the individual's daily energy requirement and that all excess calories are converted to fat, while acknowledging that these assumptions are not necessarily true.
  • A later reply suggests a method to convert caloric intake into weight using fat or carbohydrate values, but notes the simplifications involved, such as neglecting water content and potential post-consumption eating behaviors.

Areas of Agreement / Disagreement

Participants generally agree that the problem is not straightforward and that assumptions are necessary for estimation. However, there is no consensus on the validity of the assumptions or the method for calculating weight gain.

Contextual Notes

The discussion highlights limitations such as the need for precise data on individual energy requirements, the impact of water retention, and the effects of additional food intake after drinking.

Who May Find This Useful

Individuals interested in nutrition, weight management, or the relationship between caloric intake and weight gain may find this discussion relevant.

tommcwilliams
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HELP! pounds to kcal

i need help figuring out this problem, I am sure its simple but just has completely slipped my mind.

8beers per night for five nights(have all reference tables and figured 6098.4kcal consumed). how many pounds will the person gain? can't figure it out
 
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You are trying to add apples and oranges.
Kcal is a unit of energy, while pound is a unit of mass.
For determining how much weight in the long run a person will gain after consuming X kcal you would need precise data on his energy consumption.
 


You will need to assume two things - first, beers gave kcal above the daily requirement for the person, second, it was all converted to fat. Neither assumption is true, but it can give some ballpark.
 


As both posters noted, the problem is incompletely stated. One simplification is simply to convert the caloric value (6098.4 kcal) into an equivalent weight by using either fat (9 kcal/g) or carbohydrate (5 kcal/g, IIRC). That neglects the weight of the water content, and I have no idea how much of that water is retained.

It also neglects the effect of post-binge snacking... :)
 

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