Vitamin D3 is one of the few vitamins our body can produce on its own, thanks to sun exposure. However, between 40% and 60% of the Spanish population has insufficient levels, especially in autumn and winter. This happens because we spend much of the day indoors, use sunscreen, and, after a certain age, the skin synthesizes vitamin D less efficiently. In this article, we explain what vitamin D3 is good for, how to detect a deficiency, and what dose you should take depending on your situation.What is vitamin D3 and why is it so important?Vitamin D3, or cholecalciferol, is the form of vitamin D that the body produces when skin is exposed to the sun and is also found in...

Folic acid in pregnancy is one of the most important nutrients for the healthy development of the baby, especially during the first weeks of gestation. Many women don't know that its role is more crucial before they even know they are pregnant, as the baby's neural tube forms in the first 28 days after conception. In this article, we explain what folic acid is, why it's so important, when to start taking it, and what dosage is recommended by health organizations. What is folic acid and why is it essential in pregnancy? Folic acid is the synthetic form of vitamin B9, a water-soluble nutrient necessary for DNA synthesis, cell division, and the formation of new tissues. During pregnancy, these functions...

Hair and nail vitamins are one of the most searched health and beauty topics, and it's no coincidence: hair loss, brittle nails, or slow growth often have a nutritional origin that can be corrected with the right nutrients. In this article, we review which vitamins and minerals have real scientific backing to strengthen hair and nails, what doses are usually taken, and what to expect from a supplement before making it a habit. Why do hair and nails reflect your nutritional status? Hair and nails are mainly made of keratin, a protein whose synthesis depends on several micronutrients: biotin, zinc, iron, vitamin C, and sulfur amino acids. Since they are not vital tissues, the body prioritizes them last when there...

Creatine, along with protein, is the most studied sports supplement in the world, with hundreds of scientific studies published over more than three decades. However, it is still surrounded by myths that scare many people before trying it: that it is a steroid, that it damages the kidneys, that it is only for bodybuilders, or that it causes unsightly water retention. In this article, we separate what scientific evidence says from what is merely a rumor, so you can decide with real information if creatine makes sense for you and your training routine.What is creatine and how does it work?Creatine is a molecule that the body naturally produces in the liver, pancreas, and kidneys, and which we also obtain in...

Turmeric is, without a doubt, one of the most studied spices in recent years. Beyond its use in cooking, more and more people are wondering what is true about its famous anti-inflammatory properties and how to really take advantage of them, either through diet or a curcumin supplement. In this article, we review what the scientific evidence says, how to take turmeric correctly, and what precautions should be considered. What is turmeric and why is there so much talk about it? Turmeric (Curcuma longa) is a root from the ginger family, native to South Asia, which has been used for centuries in both cooking and traditional Indian and Chinese medicine. Its intense yellow-orange color is due to curcumin, the active...

Coenzyme Q10 is one of the most valued supplements when it comes to cellular energy and heart health. This compound, naturally present in our body, plays a key role in energy production and in protecting cells from oxidative stress. As we age, its levels naturally decrease, which has led to increasing interest in Coenzyme Q10 supplementation. In this article, we explain what it is, what it's used for, what benefits studies support, and how to choose the most suitable supplement for you.What is Coenzyme Q10 and what is it used for?Coenzyme Q10 (also known as ubiquinone) is a vitamin-like substance found in virtually all cells of the body, especially in organs with high energy demands such as the heart, kidneys,...

Iron is one of the most important minerals for our body and, nevertheless, its deficiency is one of the most widespread nutritional deficiencies, especially among women of childbearing age, athletes, and people with restrictive diets. When iron levels fall below what is necessary, the body cannot produce enough hemoglobin, the protein responsible for transporting oxygen through the blood, and what we know as iron deficiency anemia appears. In this article, we explain how to recognize the symptoms of iron deficiency, why it occurs, and what you can do to safely restore your levels. What is iron deficiency and why is it so common? Iron is involved in essential functions: it is part of hemoglobin, participates in cellular energy production, and...

Falling asleep soundly every night isn't always easy, and more and more people are looking for herbal teas for better sleep as a natural alternative before resorting to other solutions. Relaxing plants have been used for centuries to calm the mind and prepare the body for rest, and today, science is beginning to confirm what tradition already knew. In this article, we explain which herbal teas really work, how they act, and how you can incorporate them into your nightly routine. Why choose herbal teas for better sleep instead of other options? A relaxing herbal tea doesn't replace good sleep habits, but it can be a valuable ally within a carefully crafted nightly routine. Unlike other remedies, traditional plants like...

Marine vs. bovine collagen is one of the most common comparisons sought by those looking to improve their skin, joints, or regain muscle mass as they age. Both types of hydrolyzed collagen have become popular in recent years, but they are not the same: they differ in origin, particle size, absorption rate, and amino acid profile. In this article, we explain the real differences between marine and bovine collagen so you can choose the one that best suits your goals. What is collagen and why is it supplemented? Collagen is the most abundant structural protein in the human body. It is part of the skin, tendons, ligaments, cartilage, and bones, acting as a kind of scaffolding that provides firmness and...

More and more studies suggest that probiotics and gut microbiota not only affect digestion, but also mood, concentration, and immunity. The gut harbors trillions of microorganisms that constantly communicate with the brain through what scientists call the gut-brain axis. Understanding this connection helps in making more informed decisions about diet and daily supplementation. What are probiotics and gut microbiota? The gut microbiota is the collection of bacteria, fungi, and other microorganisms that live in the gut, especially in the colon. This microbial community participates in fiber digestion, the synthesis of certain vitamins, and the regulation of the immune system. Probiotics are specific strains of live bacteria (such as Lactobacillus and Bifidobacterium) that, when taken in sufficient quantities, help maintain this...