1) Goldenseal Food Poisoning Home Remedy
You may want to try goldenseal root for your food poisoning symptoms.  For your first dose, take 1-2 capsules, depending on the severity of your symptoms.  An hour after your first dose, take an additional three capsules.  Be sure to drink plenty of water with each dose, but be careful not to drink too much.  The stomach is under a great amount of stress, so try to time your doses between vomiting episodes.  Also, try to limit your diet to clear liquids as solid foods may be too much for your stomach to handle.  Allow your system to digest what it can and allow the poisonous food time to leave your body.
 
Replenishing the fluids in your body is very important when battling food poisoning.  While it may likely be difficult to keep food and liquids down, you should attempt to continue to drink lots of water and other fluids, especially if diarrhea is involved.  While solid foods may be out of the question, you can try Jell-O.  You can try fluids other than water as well.  Try a sweetened tea or decaffeinated soda.

Activated charcoal

Try to stick to a bland diet.  You'll be best consuming bananas, mashed potatoes, plain toast and clear liquids.  While these foods may not be very exciting to eat, you'll find that rich, fatty foods that are heavily seasoned will probably just irritate your stomach even more.  Avoid these foods until all food poisoning symptoms have passed. 

Potassium is vital for your body and your potassium reserves can be depleted with food poisoning symptoms.  If you are low on potassium, then you'll start to feel even worse.  Approximately one day after your symptoms have subsided, start to ingest potassium via bananas or sports drinks.  This is very important, as have too extreme of an imbalance of potassium can be life threatening.
 
Perhaps one of the best home remedies for food poisoning is to literally go with the flow.  If you are having episodes of vomiting and diarrhea, your body is using its own defenses to rid itself of an infection.  If you instead choose to use over the counter medications to stop the vomiting or diarrhea, you are only inhibiting your body's natural processes.
 
Try to avoid taking pain medications.  While many people take either prescription or over the counter medications in an effort to reduce their painful stomach symptoms, they are actually making the pain worse.  These pain medications (especially ones with ibuprofen or aspirin) can actually irritate the gastrointestinal tract, and cause more discomfort and pain.
 
Heat is known to help muscles relax.  If your stomach is constantly cramping from food poisoning and vomiting, you can use a hot water bottle on the stomach to help ease the cramping.  Be sure that you don't have the water bottle too hot.  This is a good home remedy for food poisoning.

2) Charcoal Home Remedy for Food Poisoning
Activated charcoal is very effective against food poisoning.  Unwanted gases and materials are caught up and captured by this powerful absorbing agent.  The material is then removed through the digestive system.  Activated charcoal can be purchased at health food stores, and looks like tiny capsules filled with a dark powder.  The dosage for these capsules is two pills as needed.  A good idea is to take two pills with a slice of fresh bread and a full glass of water.  If you do not feel a noticeable difference in your food poisoning symptoms, go ahead and take an additional two capsules.
 
3) Colloidal Silver Natural Remedy for Food Poisoning
Food poisoning can be effectively treated at home with colloidal silver.  All you need to do is ingest approximately one cup and the stomach should feel settled soon.  This will help to quell any nausea.  This is especially helpful if you have recently eaten fast food and are feeling nauseas from the grease.