The first three minutes of this video deal with caloric restriction andresveratrol, a substance found in red wine, which may offer the benefits of caloric restriction without the need for lower calorie intake.
The anti-inflammatory rosacea diet can greatly reduce rosacea symptoms in as little as three days, and may work both by virtue of its relatively small calorie content and its anti-inflammatory, anti-oxidant effects.
It should be noted that alcoholic drinks can produce or exacerbate rosacea symptoms, however non-alcoholic red wine and possibly grape juice may be an option.
Also, please be aware that reservatrol supplements are often found to contain very little or even none of the beneficial molecule due to its chemical instability.
You may not find any of the information beyond the first three minutes useful.
David A. Sinclair discusses Resveratrol with Barbara Walters
Calorie restriction and aging: review of the literature and implications for studies in humans — Am J Clin Nutr. 2003;78:361—9. American Society for Clinical Nutrition. Document Available on Request.