what is the smallest amount of food a person needs to simply stay alive?

Question

What is the least amount of food/calorie intake a person needs to simply just stay alive and nothing else.

Answer 1

well i cant say for sure, but I've tested the limits of my own body and I've went 11 day's with out food before, but the longest time with rationing of food was 27 day's on just one meal a day of whey powder drink mix and nutrient tablets.

Answer 2

The question really depends on the metabolic makeup of the person. For instance, a 5' 8" 300 lb person will need about 3,000 k/cal a day just to sustain him or herself. The reason people find it hard to diet is because the fat storage in their hypodermis is the last to be used. Fat from the blood and the pancreas must be used up first before your body starts you use the fat a person is trying to get rid of.

Answer 3

Actually calorie is not the most important one. You can still stay alive without any calory intake for even 1 week, if you have enough water to drink.

Answer 4

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Answer 5

fyi:

Above the Below

David Blaine in "Above the Below" stunt, London (October 11, 2003)
David Blaine suspended in front of City Hall, London (October 3, 2003)On September 5, 2003, Blaine began his 44-day endurance stunt sealed inside a transparent Plexiglas case suspended 30 feet (9 m) in the air over Potters Fields Park on the south bank of the River Thames in London. The case, measuring 7ft by 7ft by 3ft (2.1 x 2.1 x 0.9 m), had a webcam installed so that viewers could observe his progress. During this period the magician reportedly received no food but only water, a feat of endurance inspired by "A Hunger Artist" by Kafka.[2] It was often asked if he did receive food and water at night because the case he was in, was covered at night. The stunt co-ordinators said this was so that he could sleep without distractions.

As with his New York City stunts, the vast majority of London visitors were generally supportive, seeking little more than a wave from the magician. [3] However, the stunt became the subject of much press and media attention, due to a raucous minority who were mischievous or outright hostile to Blaine's presence.

Newspapers reported that eggs, lemons, sausages, water bottles, beer cans, paint-filled balloons and golf balls had all been thrown at the box; a hamburger was flown round the box by radio-controlled model helicopter; one man was arrested for climbing the scaffolding supporting Blaine's box and attempting to cut the power and water supply to the box; and the magician was treated to numerous displays of bare bottoms and breasts.

"You've picked the wrong town to be hung in, Mr Blaine," wrote The Sunday Times. "What is clear from the start is that Londoners are not taking Blaine quite as seriously as he takes himself. ... Really, it makes you proud to be British."

A gaunt Blaine emerged on schedule on October 19, murmuring "I love you all!" and was quickly hospitalized. A subsequent letter in the New England Journal of Medicine, co-written by Blaine, described his nutritional recovery, revealing similar symptoms often exhibited by the malnourished who are being reintroduced to liquid and solid foods. The letter reported that Blaine had lost 54 pounds (24.5 kg) during his fast.

Answer 6

1 x Dog biscuit

Answer 7

I am going to guess 1000 a day

Answer 8

1 pack of Ramen noodles per day

Answer 9

its impossible to say. everyone's metabolism is different and t also depens on how much activity or energy you are using, what the weather is like, how healthy your are, your age , size and a number of other things.