Harvard Health Content API

Protein powder supplements may slightly lower blood pressure, a study suggests. The study included 352 young adults. Some had early-stage high blood pressure. Others had pre-hypertension. This is blood pressure that is above normal, but too low for a diagnosis of high blood pressure. People in the study received 3 types of powdered food supplements. They were made of soy protein, milk protein or carbohydrates. Each person received one supplement at a time, for 8 weeks. There was a 3-week “wash-out” period with no supplements before each person switched to a different one. Blood pressure dropped about 2 points after people took either of the protein powders. It did not change with the carbohydrate powder. The study leader acknowledged that the drop in blood pressure was small. But he said it could have an impact on the overall population.

Frequent falls or protein deposits in the eye could signal an increased risk of Alzheimer’s disease, two studies suggest. Both were presented at a conference in France. The fall study included 125 people with normal brain function. Their average age was 74. Journals they kept showed that 48 fell at least once in a 6-month period. Everyone was given a spinal tap to look for substances that can detect Alzheimer’s risk. People with these substances in their spinal fluid were much more likely to fall than others. The eye study compared photographs of the retina for 3 groups. These included 13 people with Alzheimer’s and 13 with mild cognitive impairment. This condition can lead to Alzheimer’s. The third group consisted of 110 healthy people. Blood vessels in people with Alzheimer’s were narrower. This showed they had a protein buildup in the vessels.