Hypoparathyroidism is not as common as hyperparathyroidism and is characterized by secretion of low levels of parathyroid hormone (1). The disorder can be result of removal of parathyroid glands, the glands’ possible autoimmune destruction, or, in some genetic cases, when the kidney is insensitive to parathyroid output (1). When low parathyroid hormone occurs, hypocalcemia andContinue reading “Hypoparathyroidism”

How is urea regulated?

Urea cycle regulation is dependent on dietary factors and hormone concentrations (1). A feed-forward regulation exists in that available ammonia causes more urea to be created (1). This can also mean that higher protein can also act as a feed-forward regulation since it increases urea enzyme levels (1-2). Ammonia can come from diet, from deamination,Continue reading “How is urea regulated?”

“Goods” and “bads” of extra protein in sports

While Dietary Reference Intakes for protein are 0.8g protein per kg for adults, data suggest athletes may need more depending on their sport, particularly strength-training athletes (1). Research also indicates that even non-athletes who weight train may benefit from the added protein (2). Endurance exercise sports such as cycling and running increase protein turnover, includingContinue reading ““Goods” and “bads” of extra protein in sports”

Spoonful of any kind of sugar makes the protein go down after exercise

It’s clear that carbohydrates with protein affects insulin, thereby inducing glycogen synthesis. However, I was left thinking, “But what kind of carbohydrate is best?” And I found a study that suited my curiosity. One published in 2007 in J Int Soc Sports Nutr showed that 40 subjects who weight trained taking 40g of whey proteinContinue reading “Spoonful of any kind of sugar makes the protein go down after exercise”

Can arginine make you look like Arnold?

Arginine is a precursor for nitric oxide, which relaxes vascular smooth muscle leading to improved blood flow and, thus, the flow of nutrients to muscles (1;2). Oral arginine appears to also stimulate growth hormone release, especially when taken with exercise (3). Supplementation with arginine didn’t increase body mass significantly in a study in 2008; although,Continue reading “Can arginine make you look like Arnold?”

Will glutamine give you big guns?

You might think so. In theory, glutamine supplementation appears to make sense. Supplementation increases plasma glutamine in the plasma (1), which is thought to support the immune system (2;3) because the immune system uses glutamine for energy production (4). Plus, because exercise causes muscles to increase use of glutamine, stores are depleted (4). However, accordingContinue reading “Will glutamine give you big guns?”