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Questions tagged [food]

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

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0answers
44 views

Should humans design a replacement species for themselves? [closed]

Should humans design a replacement species for themselves so when they finally become extinct the new species can continue to inhabit the Earth? What should be the characteristics of this new species ...
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8answers
4k views

Can a species eat ice? [duplicate]

At age 9, I drew an alien which I described as "eating ice". Occasionally I've wondered if that's possible. Carbon-based Earth life only uses water as a solvent and consumes carbon compounds for ...
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20answers
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A sentient carnivorous species trying to preserve life. How could they find a new food source?

This is a bit of a strange one but I have an idea for a purely carnivorous species (land or water based, not determined yet) that gains awareness and even fondness of the animals they hunt. Not in the ...
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3answers
556 views

Medieval Crop Yields

I'm the DM for a D&D campaign, set in a sort of "realistic-fantasy" setting. There's monsters and magic and stuff, but there's not enough of that for the average medieval community to see much ...
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3answers
277 views

Is there a way to stop undigested food from leaving the body?

WARNING PROBABLY CONTAINS DISGUSTING STUFF So base of my previous question about will there complication to the body, especially the guts, if basically a single Senzu bean make a person never need to ...
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4answers
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How do semi-sapient yeti/ogres live in the wild?

Assume that a species of bigfoot-type animal/person exists. Most of this also applies to ogres or trolls, whatever big dumb giants your particular setting has. My world's specs: They range 7-10 feet ...
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4answers
293 views

will there complication to the body especially the guts, if basically a single senzu bean make a person never need to eat for the rest of their life?

this video surprisingly has some similar properties i try to make and better at explaining the science properties (without me knowing the science stuff before) warning!! don't watch the video when ...
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11answers
5k views

A food item only made possible by time-freezing storage?

Premise: It's the modern day, and humans have various magical abilities through a runic magic system. One of these abilities, which I'm currently trying to visualize the implications of, is called ...
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3answers
183 views

How could a creature derive energy from radioactive elements?

Have a creature that doesn't really need vitamins or minerals, it only requires energy which goes through a energy-matter conversion to build what it needs. Radioactive materials would be great ...
6
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4answers
583 views

Human with super efficient metabolism

So I read recently this article 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 converting food to energy of about 25%. What would ...
25
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9answers
4k 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 ...
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1answer
147 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 ...
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3answers
154 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; ...
23
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12answers
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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 ...
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2answers
205 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 ...
21
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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 ...
11
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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
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4answers
509 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
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10answers
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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 ...
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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?
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0answers
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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 ...
20
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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 ...
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2answers
264 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 ...
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5answers
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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 ...
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3answers
303 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 ...
9
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4answers
250 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 ...
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1answer
104 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 ...
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5answers
390 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. ...
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2answers
72 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? ...
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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 ...
8
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1answer
269 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 ...
49
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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 ...
13
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2answers
532 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 ...
9
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4answers
753 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 ...
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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 ...
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2answers
135 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
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3answers
449 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
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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 ...
6
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6answers
383 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 ...
10
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4answers
226 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 ...
16
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7answers
661 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 ...
7
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3answers
322 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
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3answers
291 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 ...
0
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2answers
338 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 ...
9
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6answers
322 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 ...
10
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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 ...
11
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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, ...
5
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3answers
162 views

Cooking using nuclear bombs [closed]

This question is completely just for fun! :) So in one of my classes, some boys on an another table were debating whether you could toast a marshmallow for smores using a nuclear blast from a nuclear ...
4
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3answers
200 views

A world of animals and cannibalism, is it plausible?

So, one of my universes, is basically a 70’s retrofuture inhabited by anthropomorphic animals. They’re animals, for the purpose of creating a fragile civilization, as well as its themes of “Humanity ...
5
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7answers
326 views

Proper technique for eating grass?

In my world, a species of vertically challenged humanoids spreads out from their island homelands to the wider world, entering the interspecies race for global dominance. Now, this species of ...