Not Eating Enough Whole Foods
A food product is not necessarily healthy for you just because it is vegetarian or vegan. At the grocery store, there are many processed foods that are free of meat or other animal products. They frequently don't add much to your diet, though.
Instead of consuming these, make the most of your vegetarian diet to eat fewer processed foods and more nutrient-dense, whole foods like fruits, vegetables, and whole grains. You may prevent nutrient deficiencies by increasing your intake of these foods, which will help you acquire the essential vitamins, minerals, and antioxidants you need. There may be further benefits to eating whole foods as compared to processed foods, such as a faster metabolism. One study compared 17 participants' metabolisms after they consumed a meal made with either processed or whole foods. After the meal, all groups reported feeling similarly satisfied, however the group that had whole foods burned nearly twice as many calories as the group that consumed processed foods. Replace refined grains with whole grains and cut back on processed and convenience foods to start consuming more whole foods. Additionally, try including more fruits and veggies in your meals and between-meal snacks.