3. Restless leg syndrome
Restless leg syndrome causes weird sensations in your legs that make you want to keep moving them, especially when you’re trying to rest. Experts aren’t entirely sure what causes it, but low iron levels seem to be connected.
Adding more iron-rich foods like leafy greens, beans, meat, and fish to your diet might help ease the symptoms. Cooking with cast-iron pans and skipping coffee or tea during meals can help your body absorb more iron. It’s always a good idea to talk with a doctor before making big changes.
4. Muscle cramps
If you’re dealing with things like sudden muscle cramps, your body might be running low on calcium. This isn’t something to brush off—without enough calcium, your nerves, muscles, and even your heart can struggle to work properly.
Calcium keeps everything from your heartbeat to your blood clotting on track, so staying on top of it matters. 
Dry skin and easily breaking nails can be more than just cosmetic issues—they also might be your body’s way of flagging low calcium levels. When calcium drops too low, it can lead to hypocalcemia, a condition often linked to low vitamin D or problems with parathyroid hormone.
It’s worth checking with a doctor if you notice these changes. Addressing it early can help prevent more serious complications.
5.
Hair loss
Noticing more hair in your brush than usual? Hair loss can sometimes point to a lack of certain nutrients in your diet. Key players like iron, biotin (B7), niacin (B3), and essential fatty acids like ALA and LA help support healthy hair growth and prevent thinning.
When these nutrients are missing, your body might struggle to maintain strong, full hair. If you’re dealing with hair loss, it might be worth reviewing your nutrition and considering a check-in with a healthcare provider. It’s not always possible to tell when your body is missing important nutrients—some vitamin deficiency symptoms are easy to overlook or confuse with other issues.
Source: Brightside
