6 Health and Nutrition Tips That Are Actually Evidence-Based

Here are 6 health and nutrition tips that are actually based on good science.
1. Take care of your gut health with probiotics and fiber
The bacteria in your gut, collectively called the gut microbiota, are incredibly important for overall health. A disruption in gut bacteria is linked to some of the world’s most serious chronic diseases, including obesity. Good ways to improve gut health include eating probiotic foods like yogurt and sauerkraut, taking probiotic supplements, and eating plenty of fiber. Notably, fiber functions as fuel for your gut bacteria.

2. Drink some water, especially before meals
Drinking enough water can have numerous benefits. Surprisingly, it can boost the number of calories you burn. Two studies note that it can increase metabolism by 24–30% over 1–1.5 hours. This can amount to 96 additional calories burned if you drink 8.4 cups (2 liters) of water per day. The optimal time to drink it is before meals. One study showed that downing 2.1 cups (500 ml) of water 30 minutes before each meal increased weight loss by 44%.
3. Don’t overcook or burn your meat
Meat can be a nutritious and healthy part of your diet. It’s very high in protein and contains various important nutrients. However, problems occur when meat is overcooked or burnt. This can lead to the formation of harmful compounds that raise your risk of cancer. When you cook meat, make sure not to overcook or burn it.
4. Avoid bright lights before sleep
When you’re exposed to bright lights in the evening, it may disrupt your production of the sleep hormone melatonin. One strategy is to use a pair of amber-tinted glasses that block blue light from entering your eyes in the evening. This allows melatonin to be produced as if it were completely dark, helping you sleep better.
5. Take vitamin D3 if you don’t get much sun exposure
Sunlight is a great source of vitamin D. Yet, most people don’t get enough sun exposure. In fact, about 41.6% of the U.S. population is deficient in this critical vitamin. If you’re unable to get adequate sun exposure, vitamin D supplements are a good alternative. Their benefits include improved bone health, increased strength, reduced symptoms of depression, and a lower risk of cancer. Vitamin D may also help you live longer. 6. Eat vegetables and fruits
Vegetables and fruits are loaded with prebiotic fiber, vitamins, minerals, and many antioxidants, some of which have potent biological effects. Studies show that people who eat the most vegetables and fruits live longer and have a lower risk of heart disease, type 2 diabetes, obesity, and other illnesses.