Is MCT Oil the Same as Coconut Oil? Key Differences Explained
MCT oil is concentrated C8 and C10 fat; coconut oil is mostly lauric acid. See how their composition, ketone effects and research compare.
OPA Nutrition Blog
Supplement & Wellness Guides
Plain-English guides to CoQ10, magnesium, gut health, sleep, blood sugar and more: what the research says and how to choose the right supplement.
167 articles
How Much MCT Is in Coconut Oil? Understanding the Key Facts
Coconut oil's fatty acid profile from USDA data: lauric acid, C8 and C10 content, how it differs from MCT oil, and what the saturated fat guidance says.
The Truth About Magnesium L-Threonate Side Effects: What You Need to Know
Reviews magnesium L-threonate side effects, mainly loose stools, nausea and cramps, signs of excess magnesium, who should be careful and what human studies show.
What the World's Oldest People Eat: Lessons for Longevity and Health
What long-lived populations eat, what the 2025 Blue Zones review says about the evidence, the debate over ages, and what large cohort studies show.
Diet and Longevity: What Long-Lived Populations and Trials Show
What cohort studies, the CALERIE trial and Blue Zones research measured about eating patterns and longevity, and where the evidence stops.
Foods High in Vitamin D: Top Sources and Normal Thyroid Function
NIH-sourced list of foods high in vitamin D, how sun and supplements fit in, how much adults need, and a plain look at vitamin D and thyroid research.
Nutrients for Normal Thyroid Function: Iodine, Selenium and More
How iodine, selenium, iron, zinc and vitamin D relate to normal thyroid function, with daily needs, upper limits, food sources and safety notes.
Iodine and Thyroid Function: Needs, Food Sources and Safety
Iodine builds the thyroid hormones T4 and T3. Learn the 150 mcg RDA, the 1,100 mcg upper limit, top food sources, kelp variability and selenium.
Understanding the Role of Iron in Energy Levels
How iron carries oxygen and fuels cells, how much you need, the best food sources, digestive side effects of supplements and why to test before taking iron.
Snacks That Boost Energy Without the Crash
Ten snacks that pair protein and fiber for steadier energy, what research says about the sugar crash, glycemic response, and a USDA-based nutrition table.
Fuel Your Day with These 10 Best Breakfast Foods for Sustained Energy
Ten breakfast foods for steadier morning energy, and what small trials found about protein, fiber, glycemic load, hydration and caffeine.
B Vitamins and Stress Reduction: Can a B-Complex Help Lower Your Stress Levels?
What randomized trials show about B-complex supplements and perceived stress, which B vitamins matter, food sources, safe upper limits and who benefits most.