The classic Fat Flush was first published more than 15 years ago and was really the book that launched the diet/detox revolution. What gives Fat Flush such longevity? The book challenged all the weight loss rules with unique protocols that produced faster and longer lasting results than any other diet book on the market. Fat Flush introduced the idea that the right fats can make you lean and trim, and how you can harness the fat burning power of the liver to supercharge healing, regardless of age and hormonal challenges. It’s a health book masquerading as a diet book!
A Q&A with Ann Louise Gittleman, PhD, CNS

The liver performs many functions, including metabolizing carbohydrates, proteins and fats, as well as critical detoxification to neutralize the myriad of toxins that assault our bodies each day. But when your liver is overloaded with pollutants and metabolic waste, it no longer performs as it should and hormone imbalances develop, fat accumulates in your liver, under your skin and in other organs. Cellulite, weight gain, and accumulation of belly fat are signs your liver may be in toxic overload, which can really throw a wrench into your metabolic engines.
In protein metabolism, the liver converts amino acids from food into various proteins that impact your weight in numerous ways. Proteins play an important role in the detox process, helping transport waste to your liver for detoxification and elimination through the kidneys. Many foods and other factors are quite hard on the liver including excess sugar, trans fats, medications, insufficient fiber, and overdoing caffeine and alcohol. Only when you bring your liver back to full function will you lose this fat.
We really can’t discuss the liver without talking about bile. One of the reasons your liver might be storing fat is bile shortage or congested bile, which means it is too thick and sludgy. The truth is that without appropriate bile, your body can’t process dietary fats. No matter how many good fats you consume, your body can’t use them without adequate bile. This is the reason many people are not succeeding on modern higher fat diets (paleo, ketogenic diet, etc.)—bile is the missing link.
Your liver, in its infinite wisdom, synthesizes and secretes about a quart and a half of bile daily and then stores it in your gallbladder. Bile is the key to absorbing and assimilating fat as well as serving as a toxic waste dump for excess chemicals, hormones, drugs, heavy metals and other toxins that eventually need to be eliminated from the body.
Remember that fat, not carbohydrate, is the preferred fuel for your body’s trillions of cells. Your cell membranes and vital organs are comprised of fat, with your brain being more than 50 percent fat. Without adequate bile, your body can’t absorb fat-soluble vitamins like vitamin A (the infection fighter), vitamin E (the fertility vitamin), vitamin K (the bone healer) and vitamin D (the healing hormone-like vitamin that increases immunity and wards off breast and colon cancers), and essential fatty acids including those wonderful omega-3s.
Bile is also the most overlooked detoxifier—one of the liver’s premier detox mechanisms—so the consequences of inadequate bile go far beyond the inability to lose weight. The quantity of bile your body can produce is directly proportional to the number of toxins it can eliminate.
We now know that by the time people develop allergies, arthritis and joint inflammation, they have a 75 percent bile deficiency, and by the time they develop a major chronic illness such as cancer or heart disease, their bile production is compromised by a whopping 90 percent. If you’re one of the millions of Americans who is missing a gallbladder, or you’re having fat digestion or detox issues, bile may be the critical missing link.
If you’ve had gallbladder surgery, you might be thinking, “But wait—my doctor told me I could live just fine without my gallbladder!” Well, you CAN, but you can’t be healthy without free-flowing bile. This miracle fluid is necessary to properly break down fats into usable fatty acids and maintain healthy cholesterol levels. If your liver can’t clear fats, then it most likely can’t break down hormones or other metabolic waste products either, and you can end up with hot flashes, night sweats, cysts, migraines, depression, weight gain and other problems.

Estrogen dominance is notorious for creating water and sodium retention. Estrogen changes the way your body metabolizes the amino acid tryptophan, which is necessary for serotonin production. Serotonin deficiency can lead to food cravings, weight gain and depression.
Food sensitivities may cause your body to hold on to extra fluid, particularly gluten, casein or lactose intolerance. The production of histamine and other chemicals causes blood vessels to expand and contract, leaking fluid into your tissues and triggering inflammation and swelling. This leaking fluid often brings protein along with it, which attracts sodium and still more fluid.
Because excess salt can cause fluid retention and “false fat,” my Fat Flush plan encourages you to replace table salt with herbs (parsley, cilantro, fennel, and anise), lemon juice, and iodine-rich seaweed gomasio. If you do use salt, make sure it’s natural sea salt as opposed to common table salt, as sea salt is lower in sodium and provides other minerals. Just use it sparingly.
False fat can be minimized by taking advantage of the foods Nature designed as perfect for humans. Consume more fresh vegetables and fruits, which tend to be rich in potassium. Potassium is an important mineral that helps balance out sodium in your body. Buy local produce—and whenever possible, organic—for optimal flavor and nutrition. Avoid processed foods, especially bouillon and commercial soups, breads, crackers, cheeses, chips, and cured meats. Olives and pickles may also be very high in salt, so read your labels. Restaurant food is typically high as well, so you might want to make better use of your own kitchen.

GLA has anti-inflammatory effects and even helps relieve PMS, but when it comes to metabolism, GLA is unmatched in its ability to stimulate “brown fat.” Brown fat is the type of metabolically active fat mostly dormant in overweight individuals. Brown fat occurs in and around your organs and contains a greater number of mitochondria, which increase your energy expenditure. Back in the 1980s, GLA was discovered to stimulate brown fat activity.
Most people consume plenty of GLA’s precursor, linoleic acid (LA), but their bodies lack the capacity to convert that LA into GLA for several reasons—genetics being one. GLA conversion is also compromised by overconsumption of sugar and refined grains, insulin resistance, thyroid or pituitary problems, overeating, vegan diets, protein and vitamin deficiencies, stress and other factors. Our ability to make this conversion generally decreases with age. If you’re stuck in your weight loss efforts, a GLA supplement may be just the ticket to get things moving again. The best natural sources are borage oil and black currant oil.
Parasites can do much more than stall your weight loss efforts. These organisms are the most immunosuppressive agents known to humankind, consuming your precious nutrients, producing toxic wastes, and eventually ravaging your cells and tissues. Parasites are particularly toxic to your liver and can cause biliary stones.
A parasite infection will send your immune system into overdrive, producing a flood of cytokines that trigger all sorts of symptoms from sugar cravings and weight gain to bloating and constipation, food sensitivities, depression, migraines, seizures, allergies, rashes and the list goes on. Cytokines penetrate the blood-brain barrier and negatively affect your neurotransmitters, such as dopamine and serotonin. If you have these symptoms, it’s important you perform an intestinal parasite cleanse. If you want a definitive diagnosis, consider obtaining an expanded GI panel.
My program is loaded with natural approaches to evicting these unwelcome invaders from your body, including zinc and vitamin A. For example, my signature cran-water contains four uniquely antiparasitic acids.