Excess serum accumulation of uric acid can lead to a type of
arthritis known as
gout.<SUP class=reference id=cite_ref-Heinig_M.2C_Johnson_RJ_2006_1059.E2.80.9364_16-0>
[17]</SUP> This painful condition is the result of needle-like crystals of uric acid precipitating in joints and capillaries.
Elevated serum uric acid (
hyperuricemia)
can result from high intake of purine-rich foods, and/or impaired excretion by the
kidneys.
Purines are found in high concentration in meat and meat products, especially internal organs such as liver and kidney. Plant based diets are generally low in purines
[1].
Examples of high-purine sources include:
sweetbreads,
anchovies,
sardines, liver, beef kidneys, brains,
meat extracts (e.g., Oxo, Bovril), herring,
mackerel,
scallops, game meats, and gravy.
A moderate amount of purine is also contained in beef, pork, poultry, fish and seafood, asparagus, cauliflower, spinach, mushrooms, green peas, lentils, dried peas, beans, oatmeal, wheat bran, wheat germ, and hawthorn.<SUP class=reference id=cite_ref-3>
[4]</SUP>
Higher levels of meat and seafood consumption are associated with an increased risk of
gout,
whereas a higher level of consumption of dairy products is associated with a decreased risk. Moderate intake of purine-rich vegetables or protein is not associated with an increased risk of
gout.<SUP class=reference id=cite_ref-4>
[5]</SUP>
The Doctor is right about protein if he were talking about, protein from meat sources....however
Protein Shakes from dairy ie..Whey, Casein, etc... is fine and can in fact decrease risk, so I'm not sure why the Dr. would tell him to cut back on shakes???? However it's been my finding in talking with a lot of medical Doctors that they don't understand diet too well unless it's related to their particular practice.
<SUP class=reference id=cite_ref-4></SUP>