Black coffee is beloved worldwide as an early morning beverage that helps people wake up, provide energy boosts and combat heart disease, cancer and Type 2 diabetes. But not all coffee is created equal: some add milk or sugar which may negate its positive health effects or even add fat and calories which might hinder weight loss efforts. So how many cups of black coffee per day is considered healthy?

Consuming more than two cups of coffee daily isn’t recommended as it can increase anxiety and heart rate, as caffeine acts as a stimulant that elevates both. Caffeine increases heart rate as well as levels of neurotransmitters like serotonin which may cause symptoms of anxiety. But with proper diet and limiting extras such as sugar-laden soda drinks, drinking black coffee may actually help you feel healthier with more energy!

black coffee contains antioxidants which can lower blood pressure and raise cholesterol levels, helping to improve heart health and protect liver disease by protecting it against alcohol damage and even reverse its damage over time. Drinking regularly may increase production of bile in your liver and help detoxify the body as well as decrease levels of harmful toxins present and potentially decrease chances of cirrhosis (severe form of hepatitis).

Studies have revealed that drinking coffee on a regular basis can improve glucose metabolism, decreasing risk for Type 2 diabetes. Coffee may also boost insulin secretion and help regulate blood sugar levels; one study demonstrated this fact with participants drinking two to three cups a day having 30% lower risk of death from all causes than those who didn’t drink any at all.

However, it’s important to keep in mind that drinking too much black coffee may have adverse side effects, especially close to bedtime. Caffeine may increase anxiety and make falling asleep more difficult as well as cause jitteriness and rapid heartbeat; for this reason it is recommended to limit black coffee consumption to the morning or early afternoon hours only.

One cup of black coffee typically contains 400mg of caffeine, which can significantly alter sleep patterns and lead to an increased risk of anxiety. Furthermore, its diuretic nature means you will need to urinate often; this could present problems for those suffering kidney issues. But by limiting how much black coffee you drink with an organic non-dairy alternative such as Stevia or Monk Fruit extract as sweeteners in moderation this could actually benefit your health; sugar or artificial sweeteners disrupt gut bacteria leading to obesity or metabolic syndrome – try switching these for natural sweeteners instead.