Obesity primary cause from dietary excess of sugars, starches & carbohydrates eaten in servings that are too large too many times per day compared to the persons activity level or how much or how often the exercise hard enough to become hot & sweaty like I do when I do Les Mill's Body Combat Meta 2 VR workouts for 10-20 minutes hitting virtual targets as they fly at me synchronized to music.
Many inactive formerly diabetic sedentary adults found a cure to pre-diabetes or Type 3 diabetes & others via adding in more walking & a healthier diet were able to reverse T2D or Type 2 diabetes & high blood pressure or hypertension like me :)
Diet or what you eat or drink not just about what, but also how much & how often you eat. Many people overeat large servings of food that are vastly excessive compared with their metabolism & activity levels, in terms of movement, standing, walking, steps, heart rate, breathing rate.
Athletes ages 16 to 64 who are regularly physically active can eat more without penalty because their metabolic rate much higher from all the fitness exercises, they use to improve muscle strength & endurance to give them a competitive edge in sporting competitions or to simply perform at their best in the Olympics by regularly training. Body builders, very large men who lift weights or do weight training can also eat more protein & fat & carbs without a high blood sugar obesity issue.
High blood sugars resulting from eating carbs, starches & sugars become fat cell inflammation as insulin released to lower blood sugar levels causing the glucose to enter cells, eventually causes body fat to increase if no physical activity movements burn up that glucose and fat naturally.
It is excess sugars, excess starches & excess carbohydrates that are making people fatter & sicker worldwide. A trending term online on social media known as SAD or the Standard American Diet which contains up to 73% of its total calories from UPF or ultra processed foods made with industrial chemistry & up to 10,000 different unregulated by the FDA chemical food additives artificial & synthetic that are more similar to car paint or cigarette smoke components than they are of any real natural food whole organic or what people have been eating for thousands of years.
I usually bash UPF or ultra processed foods because of all the artificial unregulated chemical additives that look like pesticides in terms of molecular configurations or analogs of drugs like cocaine or like hydrocarbons from crude oil, as many artificial colors are made using industrial chemical processes from coal tar or the gooey thick fluid released when coal is gently heated. Those brightly colored candy contains carcinogenic substances that are proven with evidence-based science to cause cancers. This is why Norway outlawed artificial colors in food back in 2011.
I also bash UPF because so many snack foods are over sweetened, and made in ways using industrial processing techniques & additives to increase shelf life with unhealthy ingredients that no one has in their home kitchen, in ways that would be almost impossible to make at home the same way without expensive special equipment regularly employed by UPF manufacturing of such snack foods sweetened with GMO HFCS industrial corn syrup from genetically modified corn so that it makes more fructose, the major causal basis of non-alcoholic fatty liver disorders since HFCS added to so many highly processed foods that are effectively empty calories like sugary soda or pop, and proven when consumed in excess to caused obesity and all the diseases associated with obesity.
Eat Less, Eat Less Often & Move More
Start going for walks more regularly & gently increase the amount of time you walk as your fitness improves over the next few years. Drink more water and consider skipping breakfast or dinner & eating a large nutritious lunch :) Learn about Water-only fasting where you only drink water for 3 days. Learn about Intermittent Fasting or IF or Calories Restriction with Adequate Nutrition. Watch "The Science of Fasting" video on YouTube and "How to Reverse Diabetes with Diet" on YouTube.
No snacking either, as that would keep your blood sugar & insulin levels elevated all day. Its chronically elevated insulin that results in insulin resistances that becomes Type 2 diabetes or T2D, usually also obesity or morbid obesity, because as a person has to abuse food like drugs for many years to become chronically inflamed or overweight. People as a adults have a finite number of fat cells, so to gain weight those fat cells have to swell up or become inflamed. Morbid obesity causes chronic inflammation which also causes heart disease.
Chronically elevated blood sugars also cause neuropathy by damaging capillaries & cancer cells proliferate more effectively in a high blood sugar environment, so if you have cancer & eat more sugars, starches or carbs, that will fuel the cancer cell proliferation & result in earlier death or not surviving. Water fasting for 5 days by only drinking water for example lowers blood sugar & promotes fat burning, while Ketosis at first then Autophagy hunts down broken damaged and cancer cells to break them down for amino acids for cell repairs, as autophagy is a cleanup and repair mechanism activated by water fasting.
Water fasting also increases BDNF making your brain & memory faster so you can think more easily to make healthy lifestyle diet & exercise changes that you have been hungry for in order to lose weight for many years :) There are tons of videos that explain what happens in the body when we water only fast for 1 or 3 or 5 days. I take vitamins & minerals with my water when water fasting, so I get the micronutrients needed for my fit body to make use of its limited body fat effectively.
Water Fasting Not Cure All
It can even be dangerous for some older people who are taking medications that cannot be stopped instantly without slowly reducing dosing with supervision & guidance from a doctor or nurse that you regularly consult about turning down the dose & what its doing in order to get ready to fast.
Water fasting for 3 days is also not extreme & many adults going in for a colonoscopy are required to drink a gallon or more of electrolytes for up to 3 days with no food prior to the procedure & many surgeries also require that the patient not eat anything & only drink electrolyte fluid for 3 days before the surgery to reduce complications.
Taking zero calorie electrolytes with extra water while water-only fasting for 3 days the same reason I take my multivitamins & mineral supplement with my water in the morning while fasting & drinking my coffee black with nothing added, or tea the same way. Many fasting doctors will tell you to take pinches of pink salt throughout the days of fasting with extra water.
In antiquity, since I make many foods reference to traditional diets, water was dangerous to drink because of water-borne pathogens, like fecal coliform from wild animals like birds pooping in watershed wild forest areas or similar freshwater lakes or streams used for domestic water.
Fasting helps people undo Pre-diabetes or Type 3, water-only fasting for 3 days for example can almost completely undo pre-diabetes. With Type 2 diabetes, intermittent fasting by skipping breakfast or dinner, so a long window daily without eating, can gradually reduce blood sugar & blood pressure. If you have been interval or intermittent fasting for more than 3 months it might be time to consider a 3 day water-only fast to maximize autophagy and if you are obese you can extend to 5 days, but beyond 5 days you have to work with a nurse or doctor to take regular blood & urine tests, blood pressure & blood glucose tests to make sure you safe during a prolonged weight loss oriented water only fasting with vitamins & minerals or electrolytes added to some of the water to avoid electrolyte depletion. If you go more than 5 days, it can make the start of eating again very complicated with refeeding syndrome if you eat a large meal after not eating for 5 days. Stary with a small snack or small easy to digest meal, then wait 5 hours and one more, then call it a day. Gradually over weeks reintroduce more complex foods, using knowledge you gained about the scientifically accurate nutrition while you were fasting & studying nutrition & water fasting & fasting & health.
When an adult human stops eating, it take about 3-4 hours for digestive processes to break down the food into a liquid for nutrient absorption by the small intestine & then transit through the portal vein into the liver or filtering detoxification organ, then to the lower intestine where fluid extracted that then goes to the kidneys for filtering so sodium & magnesium & potassium & calcium can be conserved, thus generating urine for the bladder to store before someone goes pee or urinates, the color of urine, its acidity, sugar content, & many other aspects all indicators of kidney & overall health, that is to say that you pee & poop can tell a doctor a lot about your overall health status.
Fasting & Starvation are the same thing, except starvation unintentionally encountered where fasting is a deliberate choice to stop eating & drinking anything except water, though I highly advocate & advise anyone water-only fasting to take a high-quality multi-vitamin & mineral supplement or electrolytes with some of their water daily while fasting. Caution, if you fast for more than 5 days, eat a small meal as your first meal of something very easy to digest, like veggie soupe, perhaps 250-300 calories worth. Wait at least 5 hours before eating a 400-500 calories meal. The following day you can increase to an 800-1000 calorie meal, and perhaps one 1400 to 2000 calorie lunch is enough for your body energy needs if you are sedentary or inactive & never workout or are very old. Eating too much too often makes people fat & sick with all kinds of diseases & disorders. What you eat is also important, but many people fail to understand serving sizes & also fail to chew up their food enough, which causes indigestion, gas & bloating. When we chew food with saliva enzymes in the saliva begin to break down what we are chewing up with our teeth of false teeth. When we swallow chewed up food it should be almost a paste, nothing solid, so the acid & bile in our stomach can react to further break down the food into a liquid for proper digestion.