Yes, zeolite, Flor-Essence, and many of the other alternatives/formulas produced for alternative treatment of cancer are very expensive.
I, too, had to deal with very limited finances when I learned I had to find a way to defeat metastasis. With a lot of research, and some very creative thinking, I did find a way.
There are natural foods, supplements, herbs that are very inexpensive, and that can be used to fight cancer, too. Green tea, and/or black tea - I get 48 tea bags for about $2.50 at the grocery store. Cabbage - very cheap compared to most other fruits and vegetables, at any time of year. Essiac tea - which is great for detoxification as well as to fight cancer - if you get the herbs from an herb shop and make your own - can be very done much cheaper than buying it commercially prepared. Tomatoes in any form help - the lycopene in them works regardless of how the tomatoes have been prepared - canned tomatoes are fairly inexpensive and can be cooked in many foods, or just eaten alone. Greens - turnip, mustard, kale, spinach, collards - any kind of greens - also tend to be less expensive than broccoli and cauliflower. If you don't like greens cooked, buy carrots (also inexpensive - try to get organic if you can, if not, wash it thoroughly with warm soapy water and then rinse, rinse, rinse) and juice them with the greens, either with a juicer of blender. (Using a blender will produce a much coarser juice, but will give the benefit of the fiber in the veggies.) Flax seed is much more inexpensive than flax oil. A pound of seed can last quite a while - a couple of teaspoons of ground seed mixed with food every day (especially in cottage cheese of yogurt) will help.
Spices/seasonings can be used to great effect. The big rage right now is curcumin supplementation. Well, curcumin is the spice turmeric. A little container is expensive, but believe me, it lasts a VERY long time because the spice is potent. I use it on eggs, with meat dishes, in vegetable dishes and on salads - in just about everything except fruit. Cumin is also a cancer fighter - and it is great with the same kinds of foods as turmeric. Onions - either fresh or minced - contain potent cancer fighters. I cook with lots and lots of onions. Garlic is the same way - I use garlic powder instead of fresh garlic. Cayenne pepper - another cancer killer. (Black pepper does not have the same effect, although black pepper IS good for circulation, and therefore is of some benefit in fighting cancer.) For salt I always use pure sea salt - well worth paying a little more - much better for the immune system, and it contains natural iodine - another mineral we need to fight cancer.
Beans - just about any kind of dried beans - barley, and other grains, brown rice, are important in fighting cancer. And they are inexpensive, and can be deliciously incorporated into the diet, if a person is willing to take the time to soak and cook them. My favorite is red kidney beans, cow peas (black-eyed peas) and brown rice (and I add cheese!!) - excellent as a bean/rice dish alone, or as a base for taco salad. Plus I use all the spices I mentioned above when I cook it - really gives me a lot of cancer-fighting punch as well as a delicious meal. (Make a big pot, and you have enough for a few meals plus some for the freezer.)
Supplements can cost a lot of money, too. I order from Swanson Vitamins - they have really great reduced prices, offer good service, and their products are good quality: www.swansonvitamins.com
Apples are a wonderful cancer fighter, as are citrus fruits, and any kind of berries. Fruit can be expensive this time of year, but you can get close to the same benefit by getting apple cider vinegar - drink 1 TSP/day in pure fresh water, mixed with a little honey to make it palatable. (This could be divided into several doses - drink smaller amounts of vinegar 2 or 3 times a day.)
If you have money to buy only one supplement - I highly recommend you get selenium. Every cell in our body absolutely HAS to have it to fight cancer, and very few people get enough selenium through diet alone. And it's relatively inexpensive.
Here are some wonderful sites to look at for alternatives: the CancerTutor site specifically talks about inexpensive treatments.
http://www.cancertutor.com
http://www.lefcancer.org
http://alkalizeforhealth.net
http://alternativecancer.us
You can also learn more about inexpensive and easy to use naturals on my blog: http://motherearthtreasurechest.blogspot.com/2008/09/my-pers
Gentle to moderate Exercise helps - both to promote a positive attitude and feeling good, as well as to build up cancer-fighting components in the immune system, etc. Walking is free, and a wonderful choice. The added bonus of walking is exposure to sunshine. Our bodies need vitamin d-3 to be healthy and to fight cancer. 15 - 20 minutes exposure of at least part of our skin (hands and arms, face) to sunshine every day allows us to produce sufficient vitamin D-3. (in the winter time it can be hard to get that exposure - try not to cover up your face when walking.)
The one thing I do very highly recommend that doesn't come cheap, is to switch to either steam-distilled water or reverse osmosis filtered water for all drinking and cooking needs. Reverse osmosis filtration systems are an excellent investment, but quite expensive. You can get a good quality one-gallon steam-distiller for $90 - $100m plus shipping and handling (mine came to just under $120 altogether.) With a 1 gallon distiller, you can make up to 3 - 4 gallons of steam distilled water a day - plenty enough to meet drinking and cooking needs. http://www.a1-water-distiller.com/
I hope this helps give you some ideas and gets you started on a healthy path. Don't let economic factors keep you from finding out how to do what you need to do, and moving forward with a plan!!
Sincerely,
Tre