Power Thought

Ingredient research · Calcium

Calcium is an essential mineral that gives bones and teeth their structure and also enables muscle contraction and nerve signaling. Supplements are most useful for filling inadequate intake and, often alongside vitamin D, can help preserve bone mineral density and support fracture prevention in some higher-risk groups.

• Supports bone-mineral-density outcomes in studied healthy children and older women.

Ingredient research · Vitamin B6

Vitamin B6 is an essential nutrient that helps enzymes process amino acids and supports neurotransmitter, hemoglobin, and immune function. Supplementation reliably corrects deficiency and can reduce nausea during pregnancy; outside these uses, it is most relevant when intake or absorption is inadequate.

• Supports depressive-symptom measures in premenopausal women with hormone-related contexts.

Ingredient research · Vitamin B12

Vitamin B12 is an essential nutrient needed for red blood cell formation, DNA synthesis, and normal nerve function. Supplementation reliably prevents or corrects deficiency—especially when intake or absorption is limited—and may improve anemia, fatigue, or neurologic symptoms caused by low B12, but is not a general energy booster when status is adequate.

• Supports vitamin B12 status and responsive deficiency markers in low-status populations, including maternal and breast-milk status during pregnancy and early lactation.

Ingredient research · Vitamin B5

Vitamin B5 is an essential nutrient used to make coenzyme A, a molecule central to releasing energy from food and building and breaking down fats. Supplementation prevents or corrects deficiency, but deficiency is uncommon and taking extra pantothenic acid has no clearly established benefit for most otherwise well-nourished people.

Ingredient research · L-Glutamine

L-Glutamine is a conditionally essential amino acid that transports nitrogen and fuels cells in the intestine and immune system. The body usually makes enough, but demand can rise during major illness or injury; a prescription oral formulation can reduce sickle cell disease complications, while routine benefits for exercise recovery or gut health are less certain.

• Supports selected intestinal-barrier, absorption, and bowel-function measures in postinfectious IBS-D and during fluorouracil chemotherapy.
• Supports selected glycemic and incretin markers, including glucose-related measures and GLP-1, in diabetes or older-adult metabolic contexts.

Ingredient research · DMAE

DMAE is deanol, an amino alcohol promoted as a precursor to the neurotransmitter acetylcholine, although meaningful conversion in the brain has not been established. It is taken mainly for attention, memory, and mood, but demonstrated oral benefits are sparse; topical cosmetic formulations are a separate use studied for temporary skin-firming effects.

Ingredient research · L-Tyrosine

L-Tyrosine is an amino acid the body uses to make dopamine, norepinephrine, and thyroid hormones. Supplementation may help preserve attention, working memory, and mental performance during acute stressors such as sleep loss or cold exposure, but it is not a reliably effective everyday cognitive or mood enhancer.

• Supports cycling endurance during exercise in the heat.

Ingredient research · Phosphatidylcholine

Phosphatidylcholine refers to a family of choline-containing phospholipids that form a major part of cell membranes and bile and can serve as a supplemental source of choline. It may be useful when choline intake is inadequate, while proposed cognitive and liver benefits beyond restoring choline status remain uncertain.

Ingredient research · Phosphatidylserine

Phosphatidylserine is a phospholipid that helps form cell membranes, with central roles in neuronal signaling and membrane function. Supplements may modestly support memory, attention, or other aspects of cognition, especially in older adults, while proposed benefits for stress responses and exercise performance are less certain.

Ingredient research · Taurine

Taurine is a sulfur-containing amino acid-like compound that helps regulate cell hydration, bile acid formation, and normal nerve and muscle function; unlike caffeine, it is not a stimulant. Supplementation may modestly support exercise performance and recovery, with possible relevance to cardiovascular and metabolic health.

• Supports blood-pressure control.

Ingredient research · Ginkgo biloba leaf extract

Ginkgo biloba leaf extract is a botanical supplement used mainly for cognitive symptoms and circulation-related complaints; its constituents can affect blood flow and neuronal signaling. Well-characterized standardized extracts may modestly improve symptoms in some people with dementia, but ginkgo is not an established memory enhancer for healthy adults, and tinnitus benefits are uncertain.