Marina MacDonald, MS, PhD
Managing Menopause
How diet, exercise, and nutrition can ease the menopausal transition “I’m still hot, it just comes in flashes.” This slogan makes me smile. It means that we can approach menopause with confidence and with humor, especially with the help of friends! Studies have proven that supportive friends play a major role in helping women…
Vitamin D in the News
COVID-19 and Vitamin D Deficiency Vitamin D deficiency is a global health problem that affects more than one billion children and adults worldwide.[1],[2] Vitamin D is essential not only for healthy bones, but also for the body’s defense against infections.[3],[4],[5],[6] Numerous studies have shown that insufficient vitamin D intakes are associated with an enhanced…
Simply Molybdenum
An essential nutrient for detoxification and the brain At least nine trace elements are essential for humans: iron, zinc, copper, manganese, iodine, chromium, selenium, cobalt, and molybdenum.[1] Molybdenum has been studied far less than minerals such as iodine, zinc, or selenium. Nevertheless, our understanding of the importance of molybdenum has grown exponentially in recent…
Health Benefits of Grapefruit Seed Extract
A natural antimicrobial and antioxidant with apparent anti-aging effects Grapefruit, also known as Citrus paradisi, is a hybrid fruit that originated centuries ago as a natural cross between sweet orange and pomelo.[1] While the seeds of the grapefruit are not typically eaten, grapefruit seed extract (GFSE) is increasingly being used as a dietary supplement,…
Study Identifies Widespread Inadequacies of Immune Health Nutrients
Key nutrient shortfalls may increase the risk of infections Ideally, a well-balanced, nutrient-dense diet, including a variety of colorful fruits and vegetables, whole grains, legumes, healthy fats, and a balanced selection of proteins can meet all of one’s daily requirements for essential vitamins and minerals, as well as essential fatty acids (EFAs), amino acids,…
Zinc for Immunity and Healthy Aging
Zinc is an essential nutrient for immunity and healthy aging Zinc is a trace mineral that is essential for growth, reproduction, and good health throughout life.[1],[2],[3] It is required for the structure and function of literally thousands of different proteins, including enzymes, transporters, and transcription factors.[4],[5] One of the most important roles of zinc…
Simply Magnesium
How magnesium supports metabolic and musculoskeletal health Magnesium serves as a cofactor for more than 300 enzymes and is essential for the functioning of every organ in the human body.[1],[2],[3],[4] It is the fourth most abundant mineral in the body, following calcium, phosphorus, and potassium. However, it remains one of the least understood and…
Are You Getting Enough DHA?
Docosahexaenoic acid for brain and eye health Are you familiar with DHA, also known as docosahexaenoic acid (pronounced doh-koh-sah-hex-ah-een-oh-ick acid)? DHA is the longest-chain omega-3 fatty acid, found in fish oil and in the diet in general. Along with its omega-3 companion, eicosapentaenoic acid (EPA), DHA is essential for health at all ages, which…
Keeping Your Immune System On Guard
Six supplements that support healthy immune system function Let’s face it: we are surrounded by a veritable sea of viruses, bacteria, and other infectious agents. What keeps these nasties at bay, in addition to physical barriers such as the skin and mucus secretions, is the immune system. If pathogens happen to gain entry, the…
The Multivitamin Debate
What does science say about multivitamin and mineral supplementation? Dietary supplement use is common in the United States, with more than half of the population using such products.[1],[2],[3],[4] Similarly, a majority of health professionals, including physicians and dieticians, use dietary supplements themselves and recommend them to patients.[5],[6],[7] Among supplement users, multivitamin and mineral supplements…
Are the Nutrients You Consume Bioavailable?
How to get the most out of your diet and supplements The body’s physiology is intricate and complex. Even when we eat a healthy diet, we may not always absorb or utilize all of the nutrients our body needs. This is why scientists who formulate nutrient supplements are obsessed with bioavailability, defined as the…
The Healthspan Imperative
Why healthspan is the new focus of geroscience “Life is short, and the older you get, the more you feel it. Indeed, the shorter it is.” This quote by actor Viggo Mortensen sums up how many people feel when they reach middle age and beyond. They start to realize how important it is to…
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