This is me after one month of a high-fat, low-carb diet, consisting of very large amounts of bacon.
Mostly ate eggs for breakfast every morning, then my lunches and dinners consisted of meat, cheese, and lots of veggies. And veggies fried in bacon fat. Sometimes I made bacon omlettes fried in bacon fat wrapped around cheese and veggies. Mmmm.
I did not calorie count.
Things I ate:
Pork/onions/cilantro/hot sauce/sour cream wrapped in fried cheese:
Bacon/green pepper/onion/cheese/hot sauce/sour cream frittata (fried omelette):
Bacon wrapped jalapeno poppers:
Oh yeah, and:
Everything you know about nutrition is wrong.
I highly recommend either watching the documentary "Fat Head" on Netflix or Hulu (highly entertaining after the slow initial half hour), or reading "Why We Get Fat" or "Good Calories, Bad Calories" from Gary Taubes.
Basic gist of it is this, there is a tl;dr underneath:
Saturated Fat intake has no correlation with heart disease. It is a myth perpetrated by a highly criticized study that became official U.S. policy in the 1950's and has only been further perpetrated by the lobbyists of grain companies who love being able to slap "healthy heart" logos on Cocoa Puffs. The Food Pyramid is similarly based on this myth.
Excluding olive/coconut, vegetable oils like canola oil are far worse for you than saturated fat like lard/butter. Margerine is worse for you than butter. Fatty foods do not cause heart disease or an increase in "bad" cholesterol; the majority of blood cholesterol is produced by the body, only a tiny fraction of it is dietary. Your fats and cholesterol are mostly controlled by hormones. What hormone controls fat? Insulin. What stimulates insulin production? Sugar. Bread. Carbs.
This has been thoroughly documented, but the most easy demonstration if it is "Fat Head", in which the producer replicates the fast food diet of SuperSize Me: Except he intakes no sugar (diet soda only), and minimal carbs (meaty meals, no fries ever), and has only 2000 calories a day (which is still quite a bit). Results? Weight loss and lower cholesterol, eating nothing but fast food and lots of burger meat and bacon.
(The above is not exactly a healthy long term diet- you'd definitely want to introduce a lot more vegetables, and grass-fed home-cooked meats would be much better for you)
So what causes heart disease? Heart disease is caused by the oxidization of bad fats. Eat antioxidants (certain veggies and fruits) and exercise to prevent that. Countries like Holland that have extremely high-fat diets (mostly cheese) and are heavy on public transit/bikes/walking have much lower heart disease than other countries.
If you don't believe me, google "Saturated Fat Heart Disease". First few links are studies or articles debunking the link the USDA always claims. Here's the Men's Health article:
http://www.menshealth.com/health/saturated-fat#axzz1lHMHi9DL
Another good article on saturated fat:
http://www.scientificamerican.com/article.cfm?id=carbs-against-cardio
The official government health websites like the USDA are full of crap and based on official policy, in turn based on lobbying and dogma of the past.
If you are interested in a near-zero carb, high-fat, rapid weight loss diet, join up with me on:
http://www.reddit.com/r/keto/
Huge thread explaining why an almost no carb (ketogenic) diet works and is not unhealthy, tons of FAQ and science:http://lowcarbplate.com/tlcm/
It should be noted that these kinds of diets are also optimal for low-body-fat, for those of you who are slim, work out, and want a six pack.
But going in to ketosis- almost no carb- isn't the only way to lose weight. Any diet that reduces insulin response will cause you to lose weight. Insulin is in response to blood sugar spikes, remember; eating foods with carbs that break down slower will result in smaller insulin responses. Eating beans and fruit instead of white bread will lower your insulin response because they don't break down into sugars as fast. Avoid the refined stuff! Sugar, corn syrup, white bread. These things make you excessively fat. Whole grains, white potatoes, and other carby/starchy foods are still pretty fattening. Want to lose weight without cutting carbs? Eliminate white bread and sugar altogether, try to limit bread intake but when you do use whole grain bread, and focus on getting carbs from beans and fruit and sweet potato instead. Feel free to replace carbs with fat and protein from meat and eggs anytime you wish! It will always be less fattening.
tl;dr: Eat less sugar, starch, and grains. Don't touch artificial vegetable oils such as canola/soybean oil. Eat all the eggs and meat you want. Feel free to cook with butter and lard. Eat lots of vegetables as opposed to fruit. Weight will fall, vitals will improve. Exercise is a multiplier.
Will follow with comments containing additional data.
Chug that heavy cream, folks!

Mostly ate eggs for breakfast every morning, then my lunches and dinners consisted of meat, cheese, and lots of veggies. And veggies fried in bacon fat. Sometimes I made bacon omlettes fried in bacon fat wrapped around cheese and veggies. Mmmm.
I did not calorie count.
Things I ate:
Pork/onions/cilantro/hot sauce/sour cream wrapped in fried cheese:

Bacon/green pepper/onion/cheese/hot sauce/sour cream frittata (fried omelette):

Bacon wrapped jalapeno poppers:

Oh yeah, and:
Everything you know about nutrition is wrong.
I highly recommend either watching the documentary "Fat Head" on Netflix or Hulu (highly entertaining after the slow initial half hour), or reading "Why We Get Fat" or "Good Calories, Bad Calories" from Gary Taubes.
Basic gist of it is this, there is a tl;dr underneath:
Saturated Fat intake has no correlation with heart disease. It is a myth perpetrated by a highly criticized study that became official U.S. policy in the 1950's and has only been further perpetrated by the lobbyists of grain companies who love being able to slap "healthy heart" logos on Cocoa Puffs. The Food Pyramid is similarly based on this myth.
Excluding olive/coconut, vegetable oils like canola oil are far worse for you than saturated fat like lard/butter. Margerine is worse for you than butter. Fatty foods do not cause heart disease or an increase in "bad" cholesterol; the majority of blood cholesterol is produced by the body, only a tiny fraction of it is dietary. Your fats and cholesterol are mostly controlled by hormones. What hormone controls fat? Insulin. What stimulates insulin production? Sugar. Bread. Carbs.
This has been thoroughly documented, but the most easy demonstration if it is "Fat Head", in which the producer replicates the fast food diet of SuperSize Me: Except he intakes no sugar (diet soda only), and minimal carbs (meaty meals, no fries ever), and has only 2000 calories a day (which is still quite a bit). Results? Weight loss and lower cholesterol, eating nothing but fast food and lots of burger meat and bacon.
(The above is not exactly a healthy long term diet- you'd definitely want to introduce a lot more vegetables, and grass-fed home-cooked meats would be much better for you)
So what causes heart disease? Heart disease is caused by the oxidization of bad fats. Eat antioxidants (certain veggies and fruits) and exercise to prevent that. Countries like Holland that have extremely high-fat diets (mostly cheese) and are heavy on public transit/bikes/walking have much lower heart disease than other countries.
If you don't believe me, google "Saturated Fat Heart Disease". First few links are studies or articles debunking the link the USDA always claims. Here's the Men's Health article:
http://www.menshealth.com/health/saturated-fat#axzz1lHMHi9DL
Another good article on saturated fat:
http://www.scientificamerican.com/article.cfm?id=carbs-against-cardio
The official government health websites like the USDA are full of crap and based on official policy, in turn based on lobbying and dogma of the past.
If you are interested in a near-zero carb, high-fat, rapid weight loss diet, join up with me on:
http://www.reddit.com/r/keto/
Huge thread explaining why an almost no carb (ketogenic) diet works and is not unhealthy, tons of FAQ and science:http://lowcarbplate.com/tlcm/
It should be noted that these kinds of diets are also optimal for low-body-fat, for those of you who are slim, work out, and want a six pack.
But going in to ketosis- almost no carb- isn't the only way to lose weight. Any diet that reduces insulin response will cause you to lose weight. Insulin is in response to blood sugar spikes, remember; eating foods with carbs that break down slower will result in smaller insulin responses. Eating beans and fruit instead of white bread will lower your insulin response because they don't break down into sugars as fast. Avoid the refined stuff! Sugar, corn syrup, white bread. These things make you excessively fat. Whole grains, white potatoes, and other carby/starchy foods are still pretty fattening. Want to lose weight without cutting carbs? Eliminate white bread and sugar altogether, try to limit bread intake but when you do use whole grain bread, and focus on getting carbs from beans and fruit and sweet potato instead. Feel free to replace carbs with fat and protein from meat and eggs anytime you wish! It will always be less fattening.

tl;dr: Eat less sugar, starch, and grains. Don't touch artificial vegetable oils such as canola/soybean oil. Eat all the eggs and meat you want. Feel free to cook with butter and lard. Eat lots of vegetables as opposed to fruit. Weight will fall, vitals will improve. Exercise is a multiplier.
Will follow with comments containing additional data.
Chug that heavy cream, folks!