Yes, red meat isn't a good idea at the first phase of the treatment. Not only because its high iron presence but because candida digests tissues and feed with it.
Unfortunately, the metabolites the yeast produces after tissue digestion are as toxic or more that when it ferments carbohydrates. Ammonia levels increase after tissue digestion.
The fastest way to get better is limiting carbohydrates and meat, specially red meat. Proteins should be concentrated eating eggs, fish, and white meat, at least in the first phase. As you see, it is impossible to avoid Iron, but limiting the supply is a good idea. Another thing I don't agree is with a total carbohydrate depletion during the first phase. Nutrient deprivation induces germination enhancing the pathogenesis of the fungus.
An small amount of buckwheat cooked with coconut oil may accomplish it. Then, when the infection be reduced to an almost symptom free state, you can eliminate the buckwheat and keep the diet with vegetables and proteins for a while to eradicate the infection.
C. albicans virulence. Sap proteins fulfill a number of specialized functions during the infective process, which include the simple role of digesting molecules for nutrient acquisition, digesting or distorting host cell membranes to facilitate adhesion and tissue invasion, and digesting cells and molecules of the host immune system to avoid or resist antimicrobial attack by the host.