(To read the abstract, visit the abstract search page and enter the PD number in the “Publication Number” field.)
1. Carbohydrate Intake, Glycemic Index, And Prostate Cancer Risk, Abstract PD31-11.
This study analyzed data from 430 veterans’ medical records. Those eating the most carbohydrate had up to a 75% lower risk for prostate cancer compared with those eating the least. High fiber intake was also associated with a significant reduction in prostate cancer. Interestingly, these researchers conducted this study because they thought that a high-carbohydrate diet was a risk factor for prostate cancer. They found the opposite.
“Conclusions: Among men consuming a Western diet, our findings suggest higher carbohydrate intake and thereby lower intake of other macronutrients (i.e. protein and fat) may be associated with reduced risk of overall [prostate cancer] and both low- and high-grade [prostate cancer]. … When examining the [glycemic index] of the diet, there was no association.”
2. Dairy Intake And Prostate Cancer Risk: Results From The California Collaborative Prostate Cancer Study, Abstract PD31-06
Data from 2953 cases and controls were analyzed. From MedPageToday: “Compared with men who reported rarely or never drinking milk, low intake was associated with a 33% increase in the odds of advanced prostate cancer, increasing to 43% among men reporting high intake (P=0.037 for trend).”
“Conclusions: These finding suggest that even though most of the putative effect of dairy products on [prostate cancer] risk seems to be explained by calcium, among men with overall low levels of calcium from diet and supplements, high intake of dairy products seems to have a separate effect, suggesting additional components in dairy that may contribute to prostate cancer development.”
3. Metabolic Syndrome Components And Prostate Cancer Risk: Results From The REDUCE Study, Abstract PD31-01
This study analyzed data from 6,426 men who took part in the REDUCE trial (Avodart/dutasteride vs. placebo, Avodart is used for BPH). Men with two components of the Metabolic Syndrome had a 35% increased risk for prostate cancer; men with 3 or more components had a 94% increased risk.
Metabolic Syndrome consists of these 5 components. Having 3 or more means you likely have Metabolic Syndrome, and now, apparently, a higher risk for prostate cancer:
- Abdominal obesity (high waist circumference)
- Elevated blood pressure
- Elevated triglycerides
- Low HDL cholesterol
- Elevated fasting glucose
“Conclusions: Men with multiple [Metabolic Syndrome] components may be at higher risk of being diagnosed specifically with high-grade [prostate cancer].”
If the claims made by low-carb enthusiasts are true … that eating a low-carbohydrate, high-fat, high-protein, high animal food diet lowers the risk for cancer, why do so many studies point to the opposite?