Monday, June 8, 2009

Crabs and Persimmons

The ancient medical book recorded:" If eat crab with perimmons together, it can make people suffer from diarrhea." The reason is that the crab includes the abundent protein, and persimmons contain a lot of tannic acid, the two eat together, will solidify and harden. In addition, the crab and persimmons all belong to the cold and cool things, at the same time can easily cause to uncomfortable if take it excessively (Da Zha, 2004).

Factors cause the crab and persimmons combination choice:

1. Taking persimmons before or after crab meal, especially during Chinese New Year.

2. Taking persimmon as appetizer and follow by a meal with crab.

3. Drink persimmon juice with crab meal.

4. Taking persimmon salad with crab soup.

5. Taking persimmon cake follow by a chili crab meal.

Crab contains the abundent protein and persimmons contain a lot of tannic acid. The tannic acid from persimmons inhibits the secretion of the digestive acids required for protein digestion. One tannin molecules binds two or more peptide groups, by formation of cross-link between the protein chains. The level of cross-linkage depends upon the number and accessibility of protein carbonyl groups per protein molecule and the relative concentration of the tannin. Tannin reacts with protein will form turbidity and a medium, coagulate the protein. The protein-tannin coagulate form will accumulate in stomach (D.K.Salunkhe, 1990).

Undigested protein then putrefies owing to the constant presence of bacteria in the digestive tract, the bacteria in the alimentary canal get all the nutrients release waste product as toxins to the body. The bloodstream picks up toxins from the putrefied mess as it passes slowly through the intestines, and these toxins in turn cause rashes, hives, headaches, nause and other symptoms commonly branded as allergies. This putrefaction is the primary cause of all sorts of digestive stress, including gas, heartburn, cramps, bloating, constipation, foul stools, bleeding piles, colitis, stomachache and diarrhea (Daniel Reid, 2006).

Suggestions on how to prepare the food to enable safety consumption:

1. Peel the persimmon before eat with crab, because most of the tannic acid comes from the peel.

2. Since the property of crab is cold, it should be eaten with dipping vinegar or drinking wine to warm the stomach and eliminate the cold, to disinfect and eliminate the poison.

cold is refer to the yin in tradition chinese medicine, please click Food combining guidlines to have more details about yin/yang balance in food combination which is similar to the acid/alkaline in chemistry aspect.

3. When suffer crab toxin occasionally, drink fry purple perilla juice or smash wax juice to diminish the effect.

4. It is better to eat one to two pared persimmons after a meal, so it will not produce any chemical effect in the stomach (Donald, 2004).

5. Crabs should be dipped in ginger vinegar before eating to kill the bacteria (Donald, 2004).

Wednesday, June 3, 2009

Food Combination

Everyone of us know that while eating Mentos and drinking cola can result in people regurgitating the foamy result. The figure below shows a Diet Coca-cola bottle, shortly after Mentos were dropped into it.

A second common diet myth we have normally heard is eating durian while drinking alcohol can make people to be nausea, increase the heartbeat of that person and it can be lethal. The above two examples are totally due to bad combination of food.

We always eat foods without knowing the effect of the food to our body. It is well known that many illneses are due to deficiencies of certain essential food factors-vitamins and minerals. These deficeincies produce degeneration of certain tissues, and this degeneration results in loss of resistance. Infections then invade us and produce disease. However, it is possible to eat large quantities of nutritious foods and get no benefit at all from them if we eat other foods at the same time that interfere with the proper digestion of vitamin and mineral bearing foods. When we eat what we eat has a lot to do with how much good we get from it.

We all at one time or anohter, have tried, read about or heard about food combining. Food combination was introduced in 1911 by Dr.William Howard Hay. Proper food combinations are important for proper digestion, utilization, and assimilation of the nutrients in our diet. Poor food combinations while can cause toxicity in the body because certain food groups do not digest well together. Combining foods improperly also led to indigestion, fermentation, putrefaction, poor nutrient absorption, and gas formation.

Below are some of the examples of healthy food combination and unhealthy food combination.

Healthy Food Combination:

1. Spinach with orange - Vitamin C in orange can enhance the iron absorption in spinach (Hallberg L et al, 1989).

2. Sardines with cod liver oil- Vitamin D in cod liver oil is good for optimal calcium absorption (Office of Dietary Supplement, 2008).

3. Oil with Vitamin A (carrot), vitamin E (nuts), Vitamin K (Green vegetables) food- these are fat soluble vitamins that dissolve in oil and absorb by body (Kiran B.Misra, 2008).

4. Meat and leafy green vegetables (Matthew S, 2005).

Unhealthy Food Combination:

1. Durian with alcohol - causes ill effect (C.W.Ogle and Y.F.Teh, 1969).

2. Tea and iron rich food (spinach, meat)- tannin in tea inhibit iron absorption (Cathy Wong, 2007).

3. Coffee and calcium rich food (tofu, sesame seeds)- coffee leads to excretion of calcium in the urine (Kathleen Goodwin, 2006).

4. Banana with milk- this combination can change the intestinal flora, produce toxins and cause sinus congestion, cold cough, and allergies (Dr. C Davis, 2007).

5. Acid fruits (orange, pineapple) with sweet fruits (banana,papaya)- these fruits cannot digest well together (Vasant Lad et al, 1997).

6. Coke with mentos

7. Crab and Persimmons