Questions tagged [food]

For questions about sources and types of nutrition for a living organism.

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21
votes
4answers
5k views

Would a carnivorous diet be able to support a giant worm?

In my fantasy world there is a large valley. At the northern end lies the 'endless desert' called the "Sea of Glass" due to its shimmering sands. Within these deserts live great wyrms that swim ...
4
votes
4answers
441 views

Human with super efficient metabolism

So I read recently this article https://dothemath.ucsd.edu/2011/11/mpg-of-a-human/ as I was trying to design a sci fi alien race for my story and I found out that a human only has an efficiency of ...
22
votes
9answers
3k views

How to check what is edible on an alien world? [duplicate]

You've landed on another planet. There are some forms of plants and animals on this world but how do you know what is safe to eat? Obviously we went through this on earth, finding the right berries ...
22
votes
12answers
10k views

Can a creature sustain itself by eating its own severed body parts?

I was inspired by geckos which can sever their own tails. I wonder if a creature which has such an ability, especially with a high regenerative power to grow its body parts, can sustain itself over ...
6
votes
1answer
139 views

What's the minimal space/mass required to feed a human indefinitely with advanced technology?

I know there are similar questions on here already, yet this is different because I don't care about traditional farming in this question. Environment This meant for food production on ...
0
votes
3answers
146 views

Can a human eat alien food for the tastiness? And vice versa [closed]

Would it be plausible for a human to eat an alien's food (and vice versa) not because said being needs nutrition or such but purely to enjoy alien cuisine. Assuming the species is fairly compatible; ...
34
votes
6answers
5k views

What's the smallest patch of land a single person could be food-sufficient on indefinitely, in a temperate climate?

One person lives alone with access to a small patch of useful land. They have to grow all their own food and survive indefinitely. This small patch of fertile soil is the only useful land. No grazing,...
0
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2answers
270 views

How much raw pig's blood could a person swallow without getting sick? [closed]

I know there are some animals that you can safely drink from. Bear Grylls once drank the blood of an Elk, for example. In a story I'm writing, I'm including a birthday ritual where the sons and ...
2
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2answers
193 views

Would a diet of fish and potatoes be able to support a person in this situation?

I have been thinking of a setting that involves a person getting stranded in a temperate forest that has not been previously inhabited. He eventually meets other people but until then he has to ...
11
votes
7answers
3k views

Blood-based alcohol for vampires?

So a setting I had in mind has vampires, of the rather traditional kind. They aren't as inhumanly strong or fast, but in turn they aren't instantly incinerated by sunlight, instead just being really ...
9
votes
4answers
489 views

Crop production in mountains?

Would potato- or grain-like crops be able to flourish in northern alpine regions? There's a lot to be said about the Andeans, but the have the benefit of living near the equator that other ...
24
votes
10answers
12k views

Could human civilization live 150 years in a nuclear-powered aircraft carrier colony without resorting to mass killing/ cannibalism?

An un-treatable virus starts infecting and killing people. Societies are on the brink of collapse, and it is decided the best way to save the most amount of people is to move everyone who can fit into ...
12
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7answers
5k views

Zombie diet, why humans? [closed]

Why would zombies eat humans and not any other animals? Are there any chemicals or vitamins that can only be found in human bodies and not other animals?
10
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11answers
6k views

How would Vegan Vampires survive?

There is a planet called Vegavampira, and on this planet the only really intelligent animals are Vegan Vampires, but there is one problem, because they are Vegan, they will not kill, nor will they ...
19
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7answers
7k views

How large would a mega structure have to be to host 1 billion people indefinitely?

Ruins of buildings, abandoned cities and suburbs dot the coasts of Earth's landmasses, inhabited by wild animals and the pieces of a once vibrant civilization. The oceans are relatively empty, the ...
1
vote
0answers
48 views

How many people can you feed per cubic meter? [duplicate]

With top notch existing technology (need not be currently industrially used, existing research application sufficient) and no regard for (external) ecology, economics or politics, we'll build a ...
8
votes
2answers
222 views

Is it possible for a creature to exist that uses lye instead of acid to digest food?

As far as I could gather the digestion relies on enzymes which in turn set requirements for pH. Is it possible for an alien creature to have a different set of enzymes that require basic environment ...
16
votes
5answers
5k views

At what temperature should the earth be cooked to prevent human infection?

Humans are the equivalent of bacteria to planet-eating monsters. And since, as we all know, eating humans is dangerous business, these monsters have decided to cook our great planet Earth before ...
2
votes
5answers
310 views

How long can humans survive on this diet?

My characters get trapped in a universe where Apes, specifically chimpanzees, rule supreme and humans are just wild animals. Like most wild animals, humans are often taken from jungles and rain ...
6
votes
3answers
285 views

How to produce milk that's similar to blood?

How could a mammal produce milk which resembles blood? The blood milk should keep as many properties of milk as possible, curding for example, while resembling blood as much as possible. The mammal ...
17
votes
5answers
3k views

A 'vampire' who still eats normal food

The hero of my story has been cursed to be forever 'bloodthirsty' in the literal sense of the word. Effectively, he has been turned into a vampire. But drinking blood will cause him to lose his senses,...
9
votes
4answers
247 views

How to keep the brain alive?

So, let’s say Bill wants to gain immortality. Bill is a billionaire, and so invests a large portion of his estate to Brain Transplant research. After a bit, the doctors vivisect him, and encase his ...
-1
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1answer
94 views

What is the number of square kilometers of crops necessary to feed a population of 100,000? [duplicate]

Yo. I have a city. Pop. 100,000. They need to eat. Due to pantheism as their government-enforced religion, they do not eat meat. I need to know how much space in square kilometers would be needed in ...
3
votes
5answers
382 views

What farming practices would allow the Earth to support a population as high as 200 billion

Welcome to the year 2170, the predictions of our grandparents were so wrong: The human population didn't cap at 20 billion, it went far past that. The global population is now roughly 200 billion. ...
4
votes
2answers
71 views

How can existing cattle and poultry farming (housing/processing) be modified to accommodate human food stock?

This is a follow up question to the one below: How can existing methods of plumping, genetic modification, and gmo feeding be altered to accommodate the need for plumper, meatier human food stock? ...
52
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12answers
10k views

How can Dwarves produce honey underground?

I have often heard/read/watched in fantasy about dwarves drinking mead and lots of it. I recently learned that mead is made from honey which requires bees and flowers which require sunlight. I doubt ...
23
votes
6answers
5k views

Would “lab meat” be able to feed a much larger global population

I read a prediction that if the global fertility rate stayed at the same rate as it was in 1995 by 2150 the population would be 256 billion people. That sounds crazy, but for my sci-fi I'm rolling ...
50
votes
18answers
9k views

How to not starve gigantic beasts

If I create dragons to be castle-sized animals, how am I supposed to let them eat? Won't they need too much for an earth-like planet? I'm currently trying to build a world where a whole lot of ...
8
votes
1answer
256 views

What is the maximum size of a tribe living off of one whale per year?

A small village of ice miners has popped up in the Northern Territory. They are a mix of southern workers who integrated with the native tribes. The group subsists on the meat of a single humpback ...
6
votes
2answers
401 views

Farming underground

Suppose the surface of earth is -349 Fahrenheit and survivors live deep underground dependent on geo-thermal energy. They do farming in tunnels. They have enough energy (heat, electricity), fresh air (...
11
votes
7answers
1k views

In What Way Would Cryomancy Affect the Food Eaten by Medieval People?

Cryomancy is magic involving the removal of heat from an object by converting thermal energy into magical energy, thereby cooling the object. The conversion to magical energy is not perfect (some ...
13
votes
2answers
511 views

How could chocolate be as addictive as heroin?

Most of us are well aware that chocolate is already a bit addictive to human beings... maybe it's the caffeine or the sugar? But what if there were a species to which chocolate was as addictive as ...
10
votes
4answers
2k views

Honey as a form of currency?

I was watching Shoddycast's video on the value of bottle caps as currency in Fallout 4 today, and after having read part of Brandon Sanderson's Words of Radiance earlier this morning, my mind started ...
9
votes
4answers
742 views

Realistic Alternatives to Dust: What Else Could Feed a Plankton Bloom?

Phytoplankton are not to be taken for granted. Not only do they form the core of marine food webs around the world, they also release half of the world's oxygen. But phytoplankton, being plant-like ...
1
vote
5answers
524 views

Effective 16th century military ration system for particular fantasy race

A race of pseudo-humans army must plan a system of rations for a long campaign on a faraway land in which they cannot rely on foraging. The campaign’s expected to last somewhere between a few months ...
6
votes
6answers
365 views

Can you survive by growing and eating your clothes?

On Blue Planet 2: The Deep (at least, that is the title in the US version), there is discussion of crabs that grow bacteria on themselves as a food source. In the show, they kind of looked like they ...
37
votes
24answers
11k views

How would a society isolated by monster attacks get food?

So I've got a medieval fantasy world where humanity has been forced to live exclusively in fortified towns and city states because of attacks by monsters. These monsters are not kaiju level in size so ...
0
votes
2answers
128 views

What would our food taste like to a far-out alien civilization? [closed]

In my world, aliens who have been able to create wormhole tech and visit earth to immerse themselves in the culture here. they split into groups and visit the largest cities (NY, London, Paris, ...
11
votes
3answers
431 views

Mutually beneficial digestive system symbiotes

On an Earth-like planet, an intelligent species evolved in symbiosis with another species that lives in their digestive system and act as the microbial gut flora in humans do. What implementations of ...
9
votes
7answers
2k views

Is it logically or scientifically possible to artificially send energy to the body?

Is it possible to use a power plant-like machine to create small amounts of electrical (or other) energy directly inside the human body, making it such that the human has energy for activity without ...
16
votes
7answers
649 views

Will food logistics limit the population of a civilization of obligate carnivores with modern technology?

I'm imagining a world populated with a species of intelligent, social, and "modern" (in terms of technology) humanoids. For the purposes of this question, they and their world can be near identical ...
22
votes
3answers
4k views

What sort of beak would a bone marrow eating bird have?

My world is very earthlike and I am looking to create a bird that primarily eats bone marrow. I wanted my bird to crack the bones of the carcasses to eat the marrow inside. What would the ideal beak ...
10
votes
4answers
218 views

What sort of animals would a civilization of small feline omnivore humanoids domesticate

I'm playing around with the idea of making a world heavily based on one of my favorite childhood book series. (basically a fanmade rewrite of sorts). The series is called Warriors, and is about ...
12
votes
5answers
3k views

How can I feed an entire population on corpses?

In the grim darkness of the far future, there is only war. The world has become a barren wasteland that is inhospitable to the the human race, which has been forced to take residence in hive cities. ...
27
votes
5answers
6k views

If a civilization could plant only three crops, which ones would cover all nutritional needs?

For example, beans and rice cooperate to make a "complete" protein, providing all of the amino acids the body can't synthesize on its own -- in fact, most traditional dishes that combine legumes and ...
7
votes
3answers
264 views

Mythical dragon diet

Would it be realistically possible for a firebreathing dragon to exist on an omnivore diet, but only eat fish as the main source of meat? The dragon is at this time in my story, a juvenile and can ...
3
votes
3answers
281 views

How long could humans survive only on other humans?

A tragic event strikes the Earth, killing all living plants and animals except humans. With no other food source, humans turn to cannibalism. Assuming fresh water and oxygen is still available, how ...
9
votes
6answers
317 views

Liquor making with Time related magic in an ancient-medieval world

So you can accelerate or reverse time of an inanimate/non sentient object within a limited space. Despite having such powers, you don't want to rule the world. Instead you want to make alcoholic ...
11
votes
4answers
1k views

Could domesticated mammoths sustain a group of nomads

In a fantasy world I have planned, I wanted one of the nomadic groups to live on a frozen steppe. They would primarily subsist by herding and domesticating mammoths. Would mammoths be comparable to, ...
10
votes
3answers
1k views

Is it theoretically possible for the human body to not defecate?

Assume that I have some way to introduce nutrients into the body of a healthy human but I do not have any method of changing their biology. No surgical procedures nor special "drugs" that would affect ...