I am not much an expert on Covid19 metabolism. However, metabolic phenotypes conferred by virus infection often mirror metabolic changes seen in cancer cells,such as upregulation of nutrient consumption and anabolism to support viral replication or rapid cell growth, respectively.
It is noted that most foods in Ramadan are saturated with fats. It is necessary to reduce fats and sugars in Ramadan, which are very important to reduce the effect and spreading of the cronavirus.
Aging causes loss of many of the anabolic signals to muscle that are present in young adulthood. Recent research suggests that there is also an increase in catabolic signals with age
This age related loss of muscle protein must be attributed to an imbalance between muscle protein synthesis and breakdown rates, resulting in a negative muscle protein balance