I have met many people who reported they were eating well, yet had deficiencies in some of the most critical micronutrients. It's a common belief that a balanced diet ensures we meet our body's needs. But many of us may still be falling short in vital nutrients, even when we feel healthy. Recent studies underpin how widespread these deficiencies are, revealing gaps even in seemingly obvious nutrients like iron, calcium, and vitamins A, C, and E among apparently healthy eaters.According to a recent study published in August which was also published in Lancet, more than half of the world population has been inadequately supplied with essential micronutrients. Such deficiencies become critical when they enter health conditions-especially among women and children-for serious problems such as anemia, reduced immunity, and underdevelopment.Micronutrients refer to the essential vitamins and minerals by which the body grows, develops, and protects itself against diseases. Although they are crucial, a large percentage of the world's population is deprived of them. For instance, iron deficiency is a major cause of anemia that affects cognitive development and leads to increased risks to pregnancy, while vitamin A deficiency is a leading cause of preventable blindness, with most of its victims being children and pregnant women. Zinc and vitamin A deficiencies compromise the immune system, making susceptible people more likely to contract infectious diseases, even in hot spots.Global statistics on deficiency rates are just eye-opening. About 68 percent of the population is lacking sufficient iodine, needed for cognitive development in children. Calcium, vitamin E, and iron deficiencies are just as widespread, impacting nearly two-thirds of the people in this world. Interestingly, even from women aged between 15-49 to children under five years, severe deficiencies in iron, zinc, and vitamin A continue, which speaks to the need to address these nutritional gaps urgently.Signs Your Body Needs More NutrientsJust recently, Dr Saurabh Sethi, a gastroenterologist based in California, shared on TikTok and listed down five signals that may indicate a nutrient deficiency. Being attentive to these signals may be the first step to filling dietary gaps as follows:1. Brittle NailsBrittle nails may reflect protein and iron deficiencies. The nail is mostly formed by keratin, so lack of protein in the diet may cause weakness to the nail. Iron deficiency anemia also causes brittle nails. Increase iron content by consuming more red meat, poultry, fish, and plant sources such as beans and spinach.2. Eyelid TwitchingThe eyelid twitching, or myokymia, is most commonly associated with magnesium deficiency, which the body needs to regulate nerve activity. Stress, fatigue, and imbalances in the levels of salts and liquids also cause this disease. However, food containing high amounts of magnesium such as nuts, seeds, and vegetables can help it. However, a doctor's prescription is required before using any supplement.3. Clicking JointsWhile joint clicking is a common phenomenon, it may also be an indicator of a calcium or vitamin D3 deficiency that is very important for bone health. To enhance the density and strength of the bones, incorporate into your diet food rich in calcium, such as milk, leafy green vegetables, and sardines, while ensuring you get enough vitamin D either from sunlight or supplements.4. Graying of Hair EarlySeveral deficiencies that contribute to premature graying are also connected to vitamin B12 and copper, which play roles in pigmentation. Vitamin B12 is required for the production of red blood cells and transporting oxygen to the hair follicles, which then support healthy hair growth. Copper is a melanin catalyst, which gives hair its color. Copper can be found in nuts and seeds, but fish, eggs, and leafy greens are high in B12.5. Easy BruisingYou are likely to bruise easily if you have low levels of vitamin C, which helps in making collagen and enhances the strength of your skin. Consuming fruits such as oranges, strawberries, and kiwis can help fortify blood vessels and strengthen skin.How to Meet Your Nutrition Requirements Every Day?It is easy to ensure that all the required nutritional micronutrients get to your body through consumption of different nutrient-rich foods.Aim for the consumption of different vibrant-colored fruits and vegetables in your diets, because each color contains different nutrients-for example, leaves have iron and magnesium while orange and red fruits contain antioxidants, such as vitamin C and beta-carotene.Other essential sources of vitamins, fiber, and energy include whole grains of brown rice, quinoa, and oats. The lean proteins include fish, chicken, eggs, beans, and tofu, which are not only good providers of amino acids but also supply iron and zinc to efficiently keep one's muscular function, immune function, and energy levels on track.They enable healthy fats to be absorbed for the absorption of fat-soluble vitamins, A, D, E, and K. Avocados, nuts, seeds, olive oil, and fatty fish contain healthy fats rich with omega 3 acids, great for brain and heart health.Water is essential, but it is equally acceptable to include nutrient-enriched drinks in the diet. These can be herbal teas, coconut waters, or smoothies packed with fruits, veggies, and protein. This will help to maintain hydration and provide additional vitamins and minerals.If you are likely to be missing particular nutrients from your diet - for example, vitamin D in the winter, or B12 if you're a vegan - you may need to supplement. First, however, seek the advice of a health professional so you can ensure you are using supplements safely and effectively.