indicates the condition of your stomach and spleen, the back the kidneys, intestines and womb." These claims have no scientific basis. She assesses people's nutritional needs based on the appearance of their nails, hair, lips, and skin. She also attributes the presence of depression or PMS to mineral deficiencies, and maintains that the location of pimples can suggest the source of health problems. McKeith also argues that the appearance, smell and consistency of faeces can give clues to bodily malfunction. She frequently engages in this activity during her television shows, a technique that led Ben Goldacre, a physician who wrote for The Guardian at the time, to dub her "the awful poo lady". Nutritional advice McKeith's advice is primarily alternative medicine without any scientific basis. She recommends a detox diet in which the "top 12 toxic terrors to avoid" are: smoking; caffeine; alcohol; chocolate and sweet snacks; pub snacks such as crisps, nuts, and pork scratchings; processed meat; white bread, white pasta, white rice; products containing added sugar; takeaways and ready meals; table salt; saturated fats; and fizzy drinks. McKeith advocates a pescetarian—sea foods—diet high in fruits and vegetables, grains, beans, nuts, and tofu, and the avoidance of processed and high-calorie foods, sugar and fat, red meat, alcohol, caffeine, white flour, and additives. Goldacre writes that he finds it offensive that the British media is "filled with people who adopt a cloak of scientific authority while apparently misunderstanding the most basic aspects of biology." He offers as an example McKeith's recommendation to eat darker leaves because they are rich in chlorophyll, writing that her claim that it will "really oxygenate your blood" is erroneous as sunlight usually is absent inside the human bowel. McKeith's advice in her book Miracle Superfood: Wild Blue-Green Algae is also disputed. Jan Krokowski of the Scottish Environment Protection Agency wrote a letter to New Scientist, as a private individual, saying "blue-green algae—properly called cyanobacteria—are able to produce a range of very powerful toxins, which pose health hazards to humans and animals and can result in illness and death." In response to the criticism, McKeith argues: "I am on a crusade to change the nation and fortunately, or unfortunately, that is going to put me in the limelight. But you cannot have change without a bit of resistance." Products McKeith's website sells books, advice, club membership, food (e.g. Goji berries, hemp seeds, "Living Food Energy Powder",