At least once, everyone should see how their body operates with as few confounding variables as possible. Your baseline performance, feeling, mood, energy - is very valuable to know.
Elimination Diet - Remove as many variables from your total intake as possible. Ideally choose a single bioavailable food prepared very cleanly for 30 days.
This is important because lots of people don't know what they have normalized as "getting older", or "I've always had that", or "I'm just inflamed". Skin conditions, hair issues, attention, clarity, are often reported to resolve on these type of protocols.
The most famous elimination diet demonstration was with Celiac disease during WWII, wheat/bread shortages created a accidental elimination diet in Denmark and established the link between wheat protein and Celiac.
Metabolism touches every part of the body, including the brain. Metabolism is driven by diet. Food literarily affects every part of our lives.
I think people should be aware this is a very useful tool, and if there is some persistent or difficult to nail down issue - why not try it?
elimination options
Omnivore options - eggs, red meat are good options. Ground meat has higher histamine levels, so it would confound the results.
Pescatarian - fish are ok, but they are not biocomplete, but that shouldn't be a problem for 30 days. The "sardine fast" is a type of elimination diet protocol.
Plant Based - low fodmap diets probably eliminate the most variables, but I'm not very well read on the options
Fasting - DO NOT DO LONG FASTS WITHOUT MEDICAL SUPERVISION. Probably the the most extreme option, total elimination, not exactly your base line, but if something was bothering you in your food you would at least notice it. REFEEDING SYNDROME is a real thing, and needs to be planned for when ending the fast.
Regardless, be aware of confounders - cooking oils and fats can change also be triggers, so be deliberate in your choice. Spices, seasonings, rubs, "electrolyte mixes", marinades introduce more variables.
My Biases
I run the ketogenic and zero carb carnivore (Which is just a elimination diet I decided to live with) communities, I'm all in on that metabolic lifestyle. However, elimination protocols don't have to aligned with my biases to be effective. Even doing something as simple as 30 days without processed foods can be helpful to know for someone.
Judy Cho wrote a great eliminate diet protocol book The Carnivore Cure Which is just eating red meat for 30 days and mapping out symptoms, mood, feelings. Plus guidance on starting, and reintroducing foods to nail down triggers. But, there are many different protocols out there, you can find one that fits your requirements.
Grinding is a process where the inside of the meat becomes the outside of the meat, dramatically increasing the surface area, more surface area for pathogens to multiply over time. If you grind the beef and immediately cook it, then its really not a issue. However, most people buy pre-ground beef which sits around for awhile.
Histamine is a chemical, not an organism. It can't "multiply over time."
A WebMD article I found suggests that histamines can be higher in cured or fermented meat products (I'm guessing because they're released by the bacteria involved in fermentation, or at least other chemical changes), but that's not the same as just grinding the meat and waiting a couple of days to eat it.
Sorry, I probably used the wrong word, bacteria can produce histamines as one of their byproducts. More surface area exposed to the atmosphere creates more opportunities for histamine producing bacteria to produce histamines on the meats newly expanded surface.
But then you cook the food. Just stop.
Histamines are heat-stable, you can destroy the bacteria that created them, but not them. This is the same rational in why cooking rotten food doesn't make it safe to eat.
You didn't explain the histamines
The pathogens, the bacteria, can produce histamines, the more surface area exposed to air, the more opportunities for this bacteria to produce histamines on the meat.
Where do people get their science.
From their 🫏